2f84185dd7
* 'android11-5.4-lts' of https://android.googlesource.com/kernel/common: FROMGIT: clk: qcom: gcc-sdm845: Add soft dependency on rpmhpd Linux 5.4.268 arm64: dts: armada-3720-turris-mox: set irq type for RTC perf top: Skip side-band event setup if HAVE_LIBBPF_SUPPORT is not set i2c: s3c24xx: fix transferring more than one message in polling mode i2c: s3c24xx: fix read transfers in polling mode mlxsw: spectrum_acl_erp: Fix error flow of pool allocation failure kdb: Fix a potential buffer overflow in kdb_local() kdb: Censor attempts to set PROMPT without ENABLE_MEM_READ ipvs: avoid stat macros calls from preemptible context netfilter: nf_tables: skip dead set elements in netlink dump net: dsa: vsc73xx: Add null pointer check to vsc73xx_gpio_probe net: ravb: Fix dma_addr_t truncation in error case net: phy: micrel: populate .soft_reset for KSZ9131 net: qualcomm: rmnet: fix global oob in rmnet_policy s390/pci: fix max size calculation in zpci_memcpy_toio() PCI: keystone: Fix race condition when initializing PHYs nvmet-tcp: Fix the H2C expected PDU len calculation serial: imx: Correct clock error message in function probe() apparmor: avoid crash when parsed profile name is empty perf env: Avoid recursively taking env->bpf_progs.lock perf bpf: Decouple creating the evlist from adding the SB event perf top: Move sb_evlist to 'struct perf_top' perf record: Move sb_evlist to 'struct record' perf env: Add perf_env__numa_node() nvmet-tcp: fix a crash in nvmet_req_complete() nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length perf genelf: Set ELF program header addresses properly software node: Let args be NULL in software_node_get_reference_args acpi: property: Let args be NULL in __acpi_node_get_property_reference serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed MIPS: Alchemy: Fix an out-of-bound access in db1550_dev_setup() MIPS: Alchemy: Fix an out-of-bound access in db1200_dev_setup() mips: Fix incorrect max_low_pfn adjustment HID: wacom: Correct behavior when processing some confidence == false touches x86/kvm: Do not try to disable kvmclock if it was not enabled wifi: mwifiex: configure BSSID consistently when starting AP wifi: rtlwifi: Convert LNKCTL change to PCIe cap RMW accessors wifi: rtlwifi: Remove bogus and dangerous ASPM disable/enable code rootfs: Fix support for rootfstype= when root= is given fbdev: flush deferred work in fb_deferred_io_fsync() ALSA: oxygen: Fix right channel of capture volume mixer usb: mon: Fix atomicity violation in mon_bin_vma_fault usb: typec: class: fix typec_altmode_put_partner to put plugs Revert "usb: typec: class: fix typec_altmode_put_partner to put plugs" usb: chipidea: wait controller resume finished for wakeup irq Revert "usb: dwc3: don't reset device side if dwc3 was configured as host-only" Revert "usb: dwc3: Soft reset phy on probe for host" usb: dwc: ep0: Update request status in dwc3_ep0_stall_restart usb: phy: mxs: remove CONFIG_USB_OTG condition for mxs_phy_is_otg_host() tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug binder: fix unused alloc->free_async_space binder: fix race between mmput() and do_exit() xen-netback: don't produce zero-size SKB frags Revert "ASoC: atmel: Remove system clock tree configuration for at91sam9g20ek" Input: atkbd - use ab83 as id when skipping the getid command binder: fix use-after-free in shinker's callback binder: fix async space check for 0-sized buffers of: unittest: Fix of_count_phandle_with_args() expected value message of: Fix double free in of_parse_phandle_with_args_map mmc: sdhci_omap: Fix TI SoC dependencies clk: si5341: fix an error code problem in si5341_output_clk_set_rate watchdog: bcm2835_wdt: Fix WDIOC_SETTIMEOUT handling watchdog/hpwdt: Only claim UNKNOWN NMI if from iLO watchdog: set cdev owner before adding drivers: clk: zynqmp: calculate closest mux rate gpu/drm/radeon: fix two memleaks in radeon_vm_init drivers/amd/pm: fix a use-after-free in kv_parse_power_table drm/amd/pm: fix a double-free in si_dpm_init drm/amdgpu/debugfs: fix error code when smc register accessors are NULL media: dvbdev: drop refcount on error path in dvb_device_open() media: cx231xx: fix a memleak in cx231xx_init_isoc drm/bridge: tc358767: Fix return value on error case drm/radeon/trinity_dpm: fix a memleak in trinity_parse_power_table drm/radeon/dpm: fix a memleak in sumo_parse_power_table drm/radeon: check the alloc_workqueue return value in radeon_crtc_init() drm/drv: propagate errors from drm_modeset_register_all() drm/msm/dsi: Use pm_runtime_resume_and_get to prevent refcnt leaks drm/msm/mdp4: flush vblank event on disable ASoC: cs35l34: Fix GPIO name and drop legacy include ASoC: cs35l33: Fix GPIO name and drop legacy include drm/radeon: check return value of radeon_ring_lock() drm/radeon/r100: Fix integer overflow issues in r100_cs_track_check() drm/radeon/r600_cs: Fix possible int overflows in r600_cs_check_reg() f2fs: fix to avoid dirent corruption drm/bridge: Fix typo in post_disable() description media: pvrusb2: fix use after free on context disconnection RDMA/usnic: Silence uninitialized symbol smatch warnings ARM: davinci: always select CONFIG_CPU_ARM926T ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim() Bluetooth: btmtkuart: fix recv_buf() return value Bluetooth: Fix bogus check for re-auth no supported with non-ssp netfilter: nf_tables: mark newset as dead on transaction abort wifi: rtlwifi: rtl8192se: using calculate_bit_shift() wifi: rtlwifi: rtl8192ee: using calculate_bit_shift() wifi: rtlwifi: rtl8192de: using calculate_bit_shift() rtlwifi: rtl8192de: make arrays static const, makes object smaller wifi: rtlwifi: rtl8192ce: using calculate_bit_shift() wifi: rtlwifi: rtl8192cu: using calculate_bit_shift() wifi: rtlwifi: rtl8192c: using calculate_bit_shift() wifi: rtlwifi: rtl8188ee: phy: using calculate_bit_shift() wifi: rtlwifi: add calculate_bit_shift() dma-mapping: clear dev->dma_mem to NULL after freeing it virtio/vsock: fix logic which reduces credit update messages selftests/net: fix grep checking for fib_nexthop_multiprefix scsi: hisi_sas: Replace with standard error code return value arm64: dts: qcom: sdm845-db845c: correct LED panic indicator scsi: fnic: Return error if vmalloc() failed wifi: rtlwifi: rtl8821ae: phy: fix an undefined bitwise shift behavior rtlwifi: Use ffs in <foo>_phy_calculate_bit_shift firmware: ti_sci: Fix an off-by-one in ti_sci_debugfs_create() net/ncsi: Fix netlink major/minor version numbers ncsi: internal.h: Fix a spello ARM: dts: qcom: apq8064: correct XOADC register address wifi: libertas: stop selecting wext bpf, lpm: Fix check prefixlen before walking trie wifi: rtw88: fix RX filter in FIF_ALLMULTI flag NFSv4.1/pnfs: Ensure we handle the error NFS4ERR_RETURNCONFLICT blocklayoutdriver: Fix reference leak of pnfs_device_node crypto: scomp - fix req->dst buffer overflow crypto: sahara - do not resize req->src when doing hash operations crypto: sahara - fix processing hash requests with req->nbytes < sg->length crypto: sahara - improve error handling in sahara_sha_process() crypto: sahara - fix wait_for_completion_timeout() error handling crypto: sahara - fix ahash reqsize crypto: virtio - Wait for tasklet to complete on device remove gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump pstore: ram_core: fix possible overflow in persistent_ram_init_ecc() crypto: sahara - fix error handling in sahara_hw_descriptor_create() crypto: sahara - fix processing requests with cryptlen < sg->length crypto: sahara - fix ahash selftest failure crypto: sahara - remove FLAGS_NEW_KEY logic crypto: af_alg - Disallow multiple in-flight AIO requests crypto: ccp - fix memleak in ccp_init_dm_workarea virtio_crypto: Introduce VIRTIO_CRYPTO_NOSPC crypto: virtio - don't use 'default m' crypto: virtio - Handle dataq logic with tasklet selinux: Fix error priority for bind with AF_UNSPEC on PF_INET6 socket mtd: Fix gluebi NULL pointer dereference caused by ftl notifier spi: sh-msiof: Enforce fixed DTDL for R-Car H3 calipso: fix memory leak in netlbl_calipso_add_pass() netlabel: remove unused parameter in netlbl_netlink_auditinfo() net: netlabel: Fix kerneldoc warnings ACPI: LPIT: Avoid u32 multiplication overflow ACPI: video: check for error while searching for backlight device parent mtd: rawnand: Increment IFC_TIMEOUT_MSECS for nand controller response powerpc/imc-pmu: Add a null pointer check in update_events_in_group() powerpc/powernv: Add a null pointer check in opal_powercap_init() powerpc/powernv: Add a null pointer check in opal_event_init() powerpc/powernv: Add a null pointer check to scom_debug_init_one() selftests/powerpc: Fix error handling in FPU/VMX preemption tests powerpc/pseries/memhp: Fix access beyond end of drmem array powerpc/pseries/memhotplug: Quieten some DLPAR operations powerpc/44x: select I2C for CURRITUCK powerpc: add crtsavres.o to always-y instead of extra-y EDAC/thunderx: Fix possible out-of-bounds string access x86/lib: Fix overflow when counting digits coresight: etm4x: Fix width of CCITMIN field parport: parport_serial: Add Brainboxes device IDs and geometry parport: parport_serial: Add Brainboxes BAR details uio: Fix use-after-free in uio_open binder: fix comment on binder_alloc_new_buf() return value binder: fix trivial typo of binder_free_buf_locked() binder: use EPOLLERR from eventpoll.h ACPI: resource: Add another DMI match for the TongFang GMxXGxx drm/crtc: fix uninitialized variable use ARM: sun9i: smp: fix return code check of of_property_match_string ida: Fix crash in ida_free when the bitmap is empty Input: xpad - add Razer Wolverine V2 support ARC: fix spare error s390/scm: fix virtual vs physical address confusion Input: i8042 - add nomux quirk for Acer P459-G2-M Input: atkbd - skip ATKBD_CMD_GETID in translated mode reset: hisilicon: hi6220: fix Wvoid-pointer-to-enum-cast warning ring-buffer: Do not record in NMI if the arch does not support cmpxchg in NMI tracing: Add size check when printing trace_marker output tracing: Have large events show up as '[LINE TOO BIG]' instead of nothing neighbour: Don't let neigh_forced_gc() disable preemption for long drm/crtc: Fix uninit-value bug in drm_mode_setcrtc jbd2: correct the printing of write_flags in jbd2_write_superblock() clk: rockchip: rk3128: Fix HCLK_OTG gate register drm/exynos: fix a wrong error checking drm/exynos: fix a potential error pointer dereference nvme: introduce helper function to get ctrl state ASoC: da7219: Support low DC impedance headset net/tg3: fix race condition in tg3_reset_task() nouveau/tu102: flush all pdbs on vmm flush ASoC: rt5650: add mutex to avoid the jack detection failure ASoC: cs43130: Fix incorrect frame delay configuration ASoC: cs43130: Fix the position of const qualifier ASoC: Intel: Skylake: mem leak in skl register function ASoC: nau8822: Fix incorrect type in assignment and cast to restricted __be16 ASoC: Intel: Skylake: Fix mem leak in few functions ALSA: hda - Fix speaker and headset mic pin config for CHUWI CoreBook XPro pinctrl: lochnagar: Don't build on MIPS f2fs: explicitly null-terminate the xattr list Revert "ipv6: make ip6_rt_gc_expire an atomic_t" Revert "ipv6: remove max_size check inline with ipv4" Linux 5.4.267 ASoC: meson: codec-glue: fix pcm format cast warning ipv6: remove max_size check inline with ipv4 ipv6: make ip6_rt_gc_expire an atomic_t net/dst: use a smaller percpu_counter batch for dst entries accounting PCI: Disable ATS for specific Intel IPU E2000 devices PCI: Extract ATS disabling to a helper function netfilter: nf_tables: Reject tables of unsupported family net: tls, update curr on splice as well ath10k: Get rid of "per_ce_irq" hw param ath10k: Keep track of which interrupts fired, don't poll them ath10k: Add interrupt summary based CE processing ath10k: Wait until copy complete is actually done before completing mmc: sdhci-sprd: Fix eMMC init failure after hw reset mmc: core: Cancel delayed work before releasing host mmc: rpmb: fixes pause retune on all RPMB partitions. mm: fix unmap_mapping_range high bits shift bug i2c: core: Fix atomic xfer check for non-preempt config firewire: ohci: suppress unexpected system reboot in AMD Ryzen machines and ASM108x/VT630x PCIe cards mm/memory-failure: check the mapcount of the precise page net: Implement missing SO_TIMESTAMPING_NEW cmsg support bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters() asix: Add check for usbnet_get_endpoints net/qla3xxx: fix potential memleak in ql_alloc_buffer_queues net/qla3xxx: switch from 'pci_' to 'dma_' API i40e: Restore VF MSI-X state during PCI reset ASoC: meson: g12a-tohdmitx: Fix event generation for S/PDIF mux ASoC: meson: g12a-tohdmitx: Validate written enum values ASoC: meson: g12a: extract codec-to-codec utils i40e: fix use-after-free in i40e_aqc_add_filters() net: Save and restore msg_namelen in sock_sendmsg net: bcmgenet: Fix FCS generation for fragmented skbuffs ARM: sun9i: smp: Fix array-index-out-of-bounds read in sunxi_mc_smp_init net-timestamp: extend SOF_TIMESTAMPING_OPT_ID to HW timestamps can: raw: add support for SO_MARK can: raw: add support for SO_TXTIME/SCM_TXTIME net: sched: em_text: fix possible memory leak in em_text_destroy() i40e: Fix filter input checks to prevent config with invalid values nfc: llcp_core: Hold a ref to llcp_local->dev when holding a ref to llcp_local ANDROID: db845c: Enable device tree overlay support Linux 5.4.266 block: Don't invalidate pagecache for invalid falloc modes ring-buffer: Fix wake ups when buffer_percent is set to 100 smb: client: fix OOB in smbCalcSize() usb: fotg210-hcd: delete an incorrect bounds test x86/alternatives: Sync core before enabling interrupts net: rfkill: gpio: set GPIO direction net: 9p: avoid freeing uninit memory in p9pdu_vreadf Bluetooth: hci_event: Fix not checking if HCI_OP_INQUIRY has been sent USB: serial: option: add Quectel RM500Q R13 firmware support USB: serial: option: add Foxconn T99W265 with new baseline USB: serial: option: add Quectel EG912Y module support USB: serial: ftdi_sio: update Actisense PIDs constant names wifi: cfg80211: fix certs build to not depend on file order wifi: cfg80211: Add my certificate iio: adc: ti_am335x_adc: Fix return value check of tiadc_request_dma() iio: common: ms_sensors: ms_sensors_i2c: fix humidity conversion time table scsi: bnx2fc: Fix skb double free in bnx2fc_rcv() Input: ipaq-micro-keys - add error handling for devm_kmemdup iio: imu: inv_mpu6050: fix an error code problem in inv_mpu6050_read_raw interconnect: Treat xlate() returning NULL node as an error btrfs: do not allow non subvolume root targets for snapshot smb: client: fix NULL deref in asn1_ber_decoder() ALSA: hda/hdmi: add force-connect quirk for NUC5CPYB ALSA: hda/hdmi: Add quirk to force pin connectivity on NUC10 pinctrl: at91-pio4: use dedicated lock class for IRQ i2c: aspeed: Handle the coalesced stop conditions with the start conditions. afs: Fix overwriting of result of DNS query net: check dev->gso_max_size in gso_features_check() net: warn if gso_type isn't set for a GSO SKB afs: Fix dynamic root lookup DNS check afs: Fix the dynamic root's d_delete to always delete unused dentries net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() net/rose: fix races in rose_kill_by_device() ethernet: atheros: fix a memleak in atl1e_setup_ring_resources net: sched: ife: fix potential use-after-free net/mlx5e: Correct snprintf truncation handling for fw_version buffer used by representors net/mlx5: Fix fw tracer first block check net/mlx5: improve some comments Revert "net/mlx5e: fix double free of encap_header" wifi: mac80211: mesh_plink: fix matches_local logic s390/vx: fix save/restore of fpu kernel context reset: Fix crash when freeing non-existent optional resets ARM: OMAP2+: Fix null pointer dereference and memory leak in omap_soc_device_init ksmbd: fix wrong name of SMB2_CREATE_ALLOCATION_SIZE ALSA: hda/realtek: Enable headset on Lenovo M90 Gen5 ANDROID: GKI: fix crc issue in include/net/addrconf.h Revert "cred: switch to using atomic_long_t" Linux 5.4.265 powerpc/ftrace: Fix stack teardown in ftrace_no_trace powerpc/ftrace: Create a dummy stackframe to fix stack unwind mmc: block: Be sure to wait while busy in CQE error recovery ring-buffer: Fix memory leak of free page team: Fix use-after-free when an option instance allocation fails arm64: mm: Always make sw-dirty PTEs hw-dirty in pte_modify ext4: prevent the normalized size from exceeding EXT_MAX_BLOCKS soundwire: stream: fix NULL pointer dereference for multi_link perf: Fix perf_event_validate_size() lockdep splat HID: hid-asus: add const to read-only outgoing usb buffer net: usb: qmi_wwan: claim interface 4 for ZTE MF290 asm-generic: qspinlock: fix queued_spin_value_unlocked() implementation HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad HID: hid-asus: reset the backlight brightness level on resume HID: add ALWAYS_POLL quirk for Apple kb platform/x86: intel_telemetry: Fix kernel doc descriptions bcache: avoid NULL checking to c->root in run_cache_set() bcache: add code comments for bch_btree_node_get() and __bch_btree_node_alloc() bcache: avoid oversize memory allocation by small stripe_size blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!" usb: aqc111: check packet for fixup for true limit Revert "PCI: acpiphp: Reassign resources on bridge if necessary" ALSA: hda/hdmi: add force-connect quirks for ASUSTeK Z170 variants cred: switch to using atomic_long_t appletalk: Fix Use-After-Free in atalk_ioctl net: stmmac: Handle disabled MDIO busses from devicetree net: stmmac: use dev_err_probe() for reporting mdio bus registration failure vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space() sign-file: Fix incorrect return values check net: Remove acked SYN flag from packet in the transmit queue correctly qed: Fix a potential use-after-free in qed_cxt_tables_alloc net/rose: Fix Use-After-Free in rose_ioctl atm: Fix Use-After-Free in do_vcc_ioctl atm: solos-pci: Fix potential deadlock on &tx_queue_lock atm: solos-pci: Fix potential deadlock on &cli_queue_lock qca_spi: Fix reset behavior qca_debug: Fix ethtool -G iface tx behavior qca_debug: Prevent crash on TX ring changes net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX afs: Fix refcount underflow from error handling race Revert "psample: Require 'CAP_NET_ADMIN' when joining "packets" group" Revert "mmc: core: add helpers mmc_regulator_enable/disable_vqmmc" Revert "mmc: sdhci-sprd: Fix vqmmc not shutting down after the card was pulled" Revert "genetlink: add CAP_NET_ADMIN test for multicast bind" Revert "drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group" Revert "perf/core: Add a new read format to get a number of lost samples" Revert "perf: Fix perf_event_validate_size()" Revert "hrtimers: Push pending hrtimers away from outgoing CPU earlier" Linux 5.4.264 devcoredump: Send uevent once devcd is ready devcoredump : Serialize devcd_del work smb: client: fix potential NULL deref in parse_dfs_referrals() cifs: Fix non-availability of dedup breaking generic/304 Revert "btrfs: add dmesg output for first mount and last unmount of a filesystem" tools headers UAPI: Sync linux/perf_event.h with the kernel sources drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group psample: Require 'CAP_NET_ADMIN' when joining "packets" group genetlink: add CAP_NET_ADMIN test for multicast bind netlink: don't call ->netlink_bind with table lock held io_uring/af_unix: disable sending io_uring over sockets nilfs2: fix missing error check for sb_set_blocksize call KVM: s390/mm: Properly reset no-dat x86/CPU/AMD: Check vendor in the AMD microcode callback serial: 8250_omap: Add earlycon support for the AM654 UART controller serial: sc16is7xx: address RX timeout interrupt errata ARM: PL011: Fix DMA support usb: typec: class: fix typec_altmode_put_partner to put plugs parport: Add support for Brainboxes IX/UC/PX parallel cards usb: gadget: f_hid: fix report descriptor allocation mmc: sdhci-sprd: Fix vqmmc not shutting down after the card was pulled mmc: core: add helpers mmc_regulator_enable/disable_vqmmc gpiolib: sysfs: Fix error handling on failed export perf: Fix perf_event_validate_size() perf/core: Add a new read format to get a number of lost samples arm64: dts: mediatek: mt8173-evb: Fix regulator-fixed node names arm64: dts: mediatek: mt7622: fix memory node warning check packet: Move reference count in packet_sock to atomic_long_t tracing: Fix a possible race when disabling buffered events tracing: Fix incomplete locking when disabling buffered events tracing: Always update snapshot buffer size nilfs2: prevent WARNING in nilfs_sufile_set_segment_usage() ALSA: pcm: fix out-of-bounds in snd_pcm_state_names ARM: dts: imx7: Declare timers compatible with fsl,imx6dl-gpt ARM: dts: imx: make gpt node name generic ARM: imx: Check return value of devm_kasprintf in imx_mmdc_perf_init scsi: be2iscsi: Fix a memleak in beiscsi_init_wrb_handle() tracing: Fix a warning when allocating buffered events fails ASoC: wm_adsp: fix memleak in wm_adsp_buffer_populate hwmon: (acpi_power_meter) Fix 4.29 MW bug RDMA/bnxt_re: Correct module description string bpf: sockmap, updating the sg structure should also update curr tcp: do not accept ACK of bytes we never sent netfilter: xt_owner: Fix for unsafe access of sk->sk_socket net: hns: fix fake link up on xge port ipv4: ip_gre: Avoid skb_pull() failure in ipgre_xmit() arcnet: restoring support for multiple Sohard Arcnet cards net: arcnet: com20020 fix error handling net: arcnet: Fix RESET flag handling hv_netvsc: rndis_filter needs to select NLS ipv6: fix potential NULL deref in fib6_add() of: dynamic: Fix of_reconfig_get_state_change() return value documentation of: Add missing 'Return' section in kerneldoc comments of: Fix kerneldoc output formatting of: base: Fix some formatting issues and provide missing descriptions of/irq: Make of_msi_map_rid() PCI bus agnostic of/irq: make of_msi_map_get_device_domain() bus agnostic of/iommu: Make of_map_rid() PCI agnostic ACPI/IORT: Make iort_msi_map_rid() PCI agnostic ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic of: base: Add of_get_cpu_state_node() to get idle states for a CPU node drm/amdgpu: correct chunk_ptr to a pointer to chunk. kconfig: fix memory leak from range properties tg3: Increment tx_dropped in tg3_tso_bug() tg3: Move the [rt]x_dropped counters to tg3_napi netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test hrtimers: Push pending hrtimers away from outgoing CPU earlier Revert "HID: core: store the unique system identifier in hid_device" Revert "HID: fix HID device resource race between HID core and debugging support" Linux 5.4.263 mmc: block: Retry commands in CQE error recovery mmc: core: convert comma to semicolon mmc: cqhci: Fix task clearing in CQE error recovery mmc: cqhci: Warn of halt or task clear failure mmc: cqhci: Increase recovery halt timeout cpufreq: imx6q: Don't disable 792 Mhz OPP unnecessarily cpufreq: imx6q: don't warn for disabling a non-existing frequency scsi: qla2xxx: Fix system crash due to bad pointer access scsi: qla2xxx: Use scsi_cmd_to_rq() instead of scsi_cmnd.request scsi: core: Introduce the scsi_cmd_to_rq() function scsi: qla2xxx: Simplify the code for aborting SCSI commands ima: detect changes to the backing overlay file ovl: skip overlayfs superblocks at global sync ima: annotate iint mutex to avoid lockdep false positive warnings fbdev: stifb: Make the STI next font pointer a 32-bit signed offset mtd: cfi_cmdset_0001: Byte swap OTP info mtd: cfi_cmdset_0001: Support the absence of protection registers s390/cmma: fix detection of DAT pages s390/mm: fix phys vs virt confusion in mark_kernel_pXd() functions family smb3: fix touch -h of symlink net: ravb: Start TX queues after HW initialization succeeded net: ravb: Use pm_runtime_resume_and_get() ravb: Fix races between ravb_tx_timeout_work() and net related ops net: stmmac: xgmac: Disable FPE MMC interrupts ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet Input: xpad - add HyperX Clutch Gladiate Support btrfs: make error messages more clear when getting a chunk map btrfs: send: ensure send_fd is writable btrfs: fix off-by-one when checking chunk map includes logical address btrfs: add dmesg output for first mount and last unmount of a filesystem powerpc: Don't clobber f0/vs0 during fp|altivec register save bcache: revert replacing IS_ERR_OR_NULL with IS_ERR dm verity: don't perform FEC for failed readahead IO dm-verity: align struct dm_verity_fec_io properly ALSA: hda/realtek: Add supported ALC257 for ChromeOS ALSA: hda/realtek: Headset Mic VREF to 100% ALSA: hda: Disable power-save on KONTRON SinglePC mmc: block: Do not lose cache flush during CQE error recovery firewire: core: fix possible memory leak in create_units() pinctrl: avoid reload of p state in list iteration io_uring: fix off-by one bvec index USB: dwc3: qcom: fix wakeup after probe deferral USB: dwc3: qcom: fix resource leaks on probe deferral usb: dwc3: set the dma max_seg_size USB: dwc2: write HCINT with INTMASK applied USB: serial: option: don't claim interface 4 for ZTE MF290 USB: serial: option: fix FM101R-GL defines USB: serial: option: add Fibocom L7xx modules bcache: prevent potential division by zero error bcache: check return value from btree_node_alloc_replacement() dm-delay: fix a race between delay_presuspend and delay_bio hv_netvsc: Mark VF as slave before exposing it to user-mode hv_netvsc: Fix race of register_netdevice_notifier and VF register USB: serial: option: add Luat Air72*U series products s390/dasd: protect device queue against concurrent access bcache: replace a mistaken IS_ERR() by IS_ERR_OR_NULL() in btree_gc_coalesce() ACPI: resource: Skip IRQ override on ASUS ExpertBook B1402CVA KVM: arm64: limit PMU version to PMUv3 for ARMv8.1 arm64: cpufeature: Extract capped perfmon fields ext4: make sure allocate pending entry not fail ext4: fix slab-use-after-free in ext4_es_insert_extent() ext4: using nofail preallocation in ext4_es_insert_extent() ext4: using nofail preallocation in ext4_es_insert_delayed_block() ext4: using nofail preallocation in ext4_es_remove_extent() ext4: use pre-allocated es in __es_remove_extent() ext4: use pre-allocated es in __es_insert_extent() ext4: factor out __es_alloc_extent() and __es_free_extent() ext4: add a new helper to check if es must be kept MIPS: KVM: Fix a build warning about variable set but not used nvmet: nul-terminate the NQNs passed in the connect command nvmet: remove unnecessary ctrl parameter afs: Fix file locking on R/O volumes to operate in local mode afs: Return ENOENT if no cell DNS record can be found net: axienet: Fix check for partial TX checksum amd-xgbe: propagate the correct speed and duplex status amd-xgbe: handle the corner-case during tx completion amd-xgbe: handle corner-case during sfp hotplug arm/xen: fix xen_vcpu_info allocation alignment net: usb: ax88179_178a: fix failed operations during ax88179_reset ipv4: Correct/silence an endian warning in __ip_do_redirect HID: fix HID device resource race between HID core and debugging support HID: core: store the unique system identifier in hid_device drm/rockchip: vop: Fix color for RGB888/BGR888 format on VOP full ata: pata_isapnp: Add missing error check for devm_ioport_map() drm/panel: simple: Fix Innolux G101ICE-L01 timings drm/panel: simple: Fix Innolux G101ICE-L01 bus flags afs: Make error on cell lookup failure consistent with OpenAFS PCI: keystone: Drop __init from ks_pcie_add_pcie_{ep,port}() RDMA/irdma: Prevent zero-length STAG registration driver core: Release all resources during unbind before updating device links ANDROID: GKI: db845c: Update symbols list and ABI on rpmsg_register_device_override Revert "tracing: Have trace_event_file have ref counters" Linux 5.4.262 netfilter: nf_tables: bogus EBUSY when deleting flowtable after flush (for 5.4) netfilter: nf_tables: disable toggling dormant table state more than once netfilter: nf_tables: fix table flag updates netfilter: nftables: update table flags from the commit phase netfilter: nf_tables: double hook unregistration in netns path netfilter: nf_tables: unregister flowtable hooks on netns exit netfilter: nf_tables: fix memleak when more than 255 elements expired netfilter: nft_set_hash: try later when GC hits EAGAIN on iteration netfilter: nft_set_rbtree: use read spinlock to avoid datapath contention netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction netfilter: nf_tables: defer gc run if previous batch is still pending netfilter: nf_tables: use correct lock to protect gc_list netfilter: nf_tables: GC transaction race with abort path netfilter: nf_tables: GC transaction race with netns dismantle netfilter: nf_tables: fix GC transaction races with netns and netlink event exit path netfilter: nf_tables: remove busy mark and gc batch API netfilter: nft_set_hash: mark set element as dead when deleting from packet path netfilter: nf_tables: adapt set backend to use GC transaction API netfilter: nf_tables: GC transaction API to avoid race with control plane netfilter: nf_tables: don't skip expired elements during walk netfilter: nft_set_rbtree: fix overlap expiration walk netfilter: nft_set_rbtree: fix null deref on element insertion netfilter: nft_set_rbtree: Switch to node list walk for overlap detection netfilter: nf_tables: drop map element references from preparation phase netfilter: nftables: rename set element data activation/deactivation functions netfilter: nf_tables: pass context to nft_set_destroy() tracing: Have trace_event_file have ref counters drm/amdgpu: fix error handling in amdgpu_bo_list_get() ext4: remove gdb backup copy for meta bg in setup_new_flex_group_blocks ext4: correct the start block of counting reserved clusters ext4: correct return value of ext4_convert_meta_bg ext4: correct offset of gdb backup in non meta_bg group to update_backups ext4: apply umask if ACL support is disabled Revert "net: r8169: Disable multicast filter for RTL8168H and RTL8107E" nfsd: fix file memleak on client_opens_release media: venus: hfi: add checks to handle capabilities from firmware media: venus: hfi: fix the check to handle session buffer requirement media: venus: hfi_parser: Add check to keep the number of codecs within range media: sharp: fix sharp encoding media: lirc: drop trailing space from scancode transmit i2c: i801: fix potential race in i801_block_transaction_byte_by_byte net: dsa: lan9303: consequently nested-lock physical MDIO Revert ncsi: Propagate carrier gain/loss events to the NCSI controller Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE Bluetooth: btusb: Add RTW8852BE device 13d3:3570 to device tables bluetooth: Add device 13d3:3571 to device tables bluetooth: Add device 0bda:887b to device tables Bluetooth: btusb: Add Realtek RTL8852BE support ID 0x0cb8:0xc559 Bluetooth: btusb: add Realtek 8822CE to usb_device_id table Bluetooth: btusb: Add flag to define wideband speech capability tty: serial: meson: fix hard LOCKUP on crtscts mode serial: meson: Use platform_get_irq() to get the interrupt tty: serial: meson: retrieve port FIFO size from DT serial: meson: remove redundant initialization of variable id ALSA: hda/realtek - Enable internal speaker of ASUS K6500ZC ALSA: info: Fix potential deadlock at disconnection parisc/pgtable: Do not drop upper 5 address bits of physical address parisc: Prevent booting 64-bit kernels on PA1.x machines i3c: master: cdns: Fix reading status register mm/cma: use nth_page() in place of direct struct page manipulation dmaengine: stm32-mdma: correct desc prep when channel running mcb: fix error handling for different scenarios when parsing i2c: core: Run atomic i2c xfer when !preemptible kernel/reboot: emergency_restart: Set correct system_state quota: explicitly forbid quota files from being encrypted jbd2: fix potential data lost in recovering journal raced with synchronizing fs bdev btrfs: don't arbitrarily slow down delalloc if we're committing PM: hibernate: Clean up sync_read handling in snapshot_write_next() PM: hibernate: Use __get_safe_page() rather than touching the list mmc: vub300: fix an error code clk: qcom: ipq8074: drop the CLK_SET_RATE_PARENT flag from PLL clocks parisc/pdc: Add width field to struct pdc_model PCI: keystone: Don't discard .probe() callback PCI: keystone: Don't discard .remove() callback genirq/generic_chip: Make irq_remove_generic_chip() irqdomain aware mmc: meson-gx: Remove setting of CMD_CFG_ERROR ACPI: resource: Do IRQ override on TongFang GMxXGxx PCI/sysfs: Protect driver's D3cold preference from user space hvc/xen: fix error path in xen_hvc_init() to always register frontend driver audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare() audit: don't take task_lock() in audit_exe_compare() code path KVM: x86: Ignore MSR_AMD64_TW_CFG access KVM: x86: hyper-v: Don't auto-enable stimer on write from user-space x86/cpu/hygon: Fix the CPU topology evaluation for real scsi: megaraid_sas: Increase register read retry rount from 3 to 30 for selected registers bpf: Fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END randstruct: Fix gcc-plugin performance mode to stay in group media: venus: hfi: add checks to perform sanity on queue pointers cifs: spnego: add ';' in HOST_KEY_LEN tools/power/turbostat: Fix a knl bug macvlan: Don't propagate promisc change to lower dev in passthru net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors net/mlx5_core: Clean driver version and name net/mlx5e: fix double free of encap_header net: stmmac: fix rx budget limit check net: stmmac: Rework stmmac_rx() netfilter: nf_conntrack_bridge: initialize err to 0 net: ethernet: cortina: Fix MTU max setting net: ethernet: cortina: Handle large frames net: ethernet: cortina: Fix max RX frame define bonding: stop the device in bond_setup_by_slave() ptp: annotate data-race around q->head and q->tail xen/events: fix delayed eoi list handling ppp: limit MRU to 64K tipc: Fix kernel-infoleak due to uninitialized TLV value net: hns3: fix variable may not initialized problem in hns3_init_mac_addr() tty: Fix uninit-value access in ppp_sync_receive() ipvlan: add ipvlan_route_v6_outbound() helper NFSv4.1: fix SP4_MACH_CRED protection for pnfs IO wifi: iwlwifi: Use FW rate for non-data frames pwm: Fix double shift bug ASoC: ti: omap-mcbsp: Fix runtime PM underflow warnings kgdb: Flush console before entering kgdb on panic drm/amd/display: Avoid NULL dereference of timing generator media: cobalt: Use FIELD_GET() to extract Link Width gfs2: ignore negated quota changes media: vivid: avoid integer overflow media: gspca: cpia1: shift-out-of-bounds in set_flicker i2c: sun6i-p2wi: Prevent potential division by zero usb: gadget: f_ncm: Always set current gadget in ncm_bind() tty: vcc: Add check for kstrdup() in vcc_probe() HID: Add quirk for Dell Pro Wireless Keyboard and Mouse KM5221W scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() atm: iphase: Do PCI error checks on own line PCI: tegra194: Use FIELD_GET()/FIELD_PREP() with Link Width fields ALSA: hda: Fix possible null-ptr-deref when assigning a stream ARM: 9320/1: fix stack depot IRQ stack filter jfs: fix array-index-out-of-bounds in diAlloc jfs: fix array-index-out-of-bounds in dbFindLeaf fs/jfs: Add validity check for db_maxag and db_agpref fs/jfs: Add check for negative db_l2nbperpage RDMA/hfi1: Use FIELD_GET() to extract Link Width crypto: pcrypt - Fix hungtask for PADATA_RESET selftests/efivarfs: create-read: fix a resource leak drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL drm/amd: Fix UBSAN array-index-out-of-bounds for Polaris and Tonga drm/amd: Fix UBSAN array-index-out-of-bounds for SMU7 drm/komeda: drop all currently held locks if deadlock happens platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e Bluetooth: Fix double free in hci_conn_cleanup wifi: ath10k: Don't touch the CE interrupt registers after power up net: annotate data-races around sk->sk_dst_pending_confirm net: annotate data-races around sk->sk_tx_queue_mapping wifi: ath10k: fix clang-specific fortify warning wifi: ath9k: fix clang-specific fortify warnings wifi: mac80211: don't return unset power in ieee80211_get_tx_power() wifi: mac80211_hwsim: fix clang-specific fortify warning x86/mm: Drop the 4 MB restriction on minimal NUMA node memory size clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware clocksource/drivers/timer-imx-gpt: Fix potential memory leak perf/core: Bail out early if the request AUX area is out of bound locking/ww_mutex/test: Fix potential workqueue corruption Revert "inet: shrink struct flowi_common" Revert "ipvlan: properly track tx_errors" ANDROID: fix up rpmsg_device ABI break ANDROID: fix up platform_device ABI break Linux 5.4.261 btrfs: use u64 for buffer sizes in the tree search ioctls Revert "mmc: core: Capture correct oemid-bits for eMMC cards" fbdev: fsl-diu-fb: mark wr_reg_wa() static fbdev: imsttfb: fix a resource leak in probe fbdev: imsttfb: Fix error path of imsttfb_probe() spi: spi-zynq-qspi: add spi-mem to driver kconfig dependencies drm/syncobj: fix DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses netfilter: nft_redir: use `struct nf_nat_range2` throughout and deduplicate eval call-backs netfilter: xt_recent: fix (increase) ipv6 literal buffer length r8169: respect userspace disabling IFF_MULTICAST tg3: power down device only on SYSTEM_POWER_OFF net/smc: fix dangling sock under state SMC_APPFINCLOSEWAIT net: stmmac: xgmac: Enable support for multiple Flexible PPS outputs Fix termination state for idr_for_each_entry_ul() net: r8169: Disable multicast filter for RTL8168H and RTL8107E dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. dccp: Call security_inet_conn_request() after setting IPv4 addresses. inet: shrink struct flowi_common tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING llc: verify mac len before reading mac header Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume pwm: sti: Reduce number of allocations and drop usage of chip_data pwm: sti: Avoid conditional gotos regmap: prevent noinc writes from clobbering cache media: dvb-usb-v2: af9035: fix missing unlock media: s3c-camif: Avoid inappropriate kfree() media: bttv: fix use after free error due to btv->timeout timer pcmcia: ds: fix possible name leak in error path in pcmcia_device_add() pcmcia: ds: fix refcount leak in pcmcia_device_add() pcmcia: cs: fix possible hung task and memory leak pccardd() rtc: pcf85363: fix wrong mask/val parameters in regmap_update_bits call i3c: Fix potential refcount leak in i3c_master_register_new_i3c_devs powerpc/pseries: fix potential memory leak in init_cpu_associativity() powerpc/imc-pmu: Use the correct spinlock initializer. powerpc/xive: Fix endian conversion size modpost: fix tee MODULE_DEVICE_TABLE built on big-endian host f2fs: fix to initialize map.m_pblk in f2fs_precache_extents() dmaengine: pxa_dma: Remove an erroneous BUG_ON() in pxad_free_desc() USB: usbip: fix stub_dev hub disconnect tools: iio: iio_generic_buffer ensure alignment tools: iio: iio_generic_buffer: Fix some integer type and calculation tools: iio: privatize globals and functions in iio_generic_buffer.c file misc: st_core: Do not call kfree_skb() under spin_lock_irqsave() dmaengine: ti: edma: handle irq_of_parse_and_map() errors usb: dwc2: fix possible NULL pointer dereference caused by driver concurrency tty: tty_jobctrl: fix pid memleak in disassociate_ctty() leds: trigger: ledtrig-cpu:: Fix 'output may be truncated' issue for 'cpu' ledtrig-cpu: Limit to 8 CPUs leds: pwm: Don't disable the PWM when the LED should be off leds: pwm: convert to atomic PWM API leds: pwm: simplify if condition mfd: dln2: Fix double put in dln2_probe ASoC: ams-delta.c: use component after check ASoC: Intel: Skylake: Fix mem leak when parsing UUIDs fails sh: bios: Revive earlyprintk support RDMA/hfi1: Workaround truncation compilation error scsi: ufs: core: Leave space for '\0' in utf8 desc string ext4: move 'ix' sanity check to corrent position ARM: 9321/1: memset: cast the constant byte to unsigned char hid: cp2112: Fix duplicate workqueue initialization HID: cp2112: Use irqchip template crypto: caam/jr - fix Chacha20 + Poly1305 self test failure crypto: caam/qi2 - fix Chacha20 + Poly1305 self test failure nd_btt: Make BTT lanes preemptible sched/rt: Provide migrate_disable/enable() inlines libnvdimm/of_pmem: Use devm_kstrdup instead of kstrdup and check its return value hwrng: geode - fix accessing registers clk: scmi: Free scmi_clk allocated when the clocks with invalid info are skipped firmware: ti_sci: Mark driver as non removable firmware: ti_sci: Replace HTTP links with HTTPS ones soc: qcom: llcc: Handle a second device without data corruption soc: qcom: Rename llcc-slice to llcc-qcom soc: qcom: llcc cleanup to get rid of sdm845 specific driver file ARM: dts: qcom: mdm9615: populate vsdcc fixed regulator arm64: dts: qcom: sdm845-mtp: fix WiFi configuration drm/rockchip: cdn-dp: Fix some error handling paths in cdn_dp_probe() drm/radeon: possible buffer overflow drm/rockchip: vop: Fix call to crtc reset helper drm/rockchip: vop: Fix reset of state in duplicate state crtc funcs hwmon: (coretemp) Fix potentially truncated sysfs attribute name platform/x86: wmi: Fix opening of char device platform/x86: wmi: remove unnecessary initializations platform/x86: wmi: Fix probe failure when failing to register WMI devices clk: mediatek: clk-mt2701: Add check for mtk_alloc_clk_data clk: mediatek: clk-mt7629: Add check for mtk_alloc_clk_data clk: mediatek: clk-mt7629-eth: Add check for mtk_alloc_clk_data clk: mediatek: clk-mt6797: Add check for mtk_alloc_clk_data clk: mediatek: clk-mt6779: Add check for mtk_alloc_clk_data clk: npcm7xx: Fix incorrect kfree clk: keystone: pll: fix a couple NULL vs IS_ERR() checks clk: imx: Select MXC_CLK for CLK_IMX8QXP clk: qcom: gcc-sm8150: Fix gcc_sdcc2_apps_clk_src clk: qcom: gcc-sm8150: use ARRAY_SIZE instead of specifying num_parents clk: qcom: clk-rcg2: Fix clock rate overflow for high parent frequencies regmap: debugfs: Fix a erroneous check after snprintf() ipvlan: properly track tx_errors net: add DEV_STATS_READ() helper ipv6: avoid atomic fragment on GSO packets ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias() tcp: fix cookie_init_timestamp() overflows tcp: Remove one extra ktime_get_ns() from cookie_init_timestamp chtls: fix tp->rcv_tstamp initialization r8169: fix rare issue with broken rx after link-down on RTL8125 r8169: use tp_to_dev instead of open code thermal: core: prevent potential string overflow can: dev: can_restart(): fix race condition between controller restart and netif_carrier_on() can: dev: can_restart(): don't crash kernel if carrier is OK wifi: rtlwifi: fix EDCA limit set by BT coexistence tcp_metrics: do not create an entry from tcp_init_metrics() tcp_metrics: properly set tp->snd_ssthresh in tcp_init_metrics() tcp_metrics: add missing barriers on delete wifi: mt76: mt7603: rework/fix rx pse hang check wifi: rtw88: debug: Fix the NULL vs IS_ERR() bug for debugfs_create_file() tcp: call tcp_try_undo_recovery when an RTOd TFO SYNACK is ACKed i40e: fix potential memory leaks in i40e_remove() genirq/matrix: Exclude managed interrupts in irq_matrix_allocated() vfs: fix readahead(2) on block devices Linux 5.4.260 tty: 8250: Add support for Intashield IS-100 tty: 8250: Add support for Brainboxes UP cards tty: 8250: Add support for additional Brainboxes UC cards tty: 8250: Remove UC-257 and UC-431 usb: storage: set 1.50 as the lower bcdDevice for older "Super Top" compatibility PCI: Prevent xHCI driver from claiming AMD VanGogh USB3 DRD device Revert "ARM: dts: Move am33xx and am43xx mmc nodes to sdhci-omap driver" nvmet-tcp: Fix a possible UAF in queue intialization setup nvmet-tcp: move send/recv error handling in the send/recv methods instead of call-sites remove the sx8 block driver ata: ahci: fix enum constants for gcc-13 net: chelsio: cxgb4: add an error code check in t4_load_phy_fw platform/mellanox: mlxbf-tmfifo: Fix a warning message platform/x86: asus-wmi: Change ASUS_WMI_BRN_DOWN code from 0x20 to 0x2e scsi: mpt3sas: Fix in error path fbdev: uvesafb: Call cn_del_callback() at the end of uvesafb_exit() ASoC: rt5650: fix the wrong result of key button netfilter: nfnetlink_log: silence bogus compiler warning spi: npcm-fiu: Fix UMA reads when dummy.nbytes == 0 fbdev: atyfb: only use ioremap_uc() on i386 and ia64 Input: synaptics-rmi4 - handle reset delay when using SMBus trsnsport dmaengine: ste_dma40: Fix PM disable depth imbalance in d40_probe irqchip/stm32-exti: add missing DT IRQ flag translation Input: i8042 - add Fujitsu Lifebook E5411 to i8042 quirk table x86: Fix .brk attribute in linker script rpmsg: Fix possible refcount leak in rpmsg_register_device_override() rpmsg: glink: Release driver_override rpmsg: Fix calling device_lock() on non-initialized device rpmsg: Fix kfree() of static memory on setting driver_override rpmsg: Constify local variable in field store macro driver: platform: Add helper for safer setting of driver_override ext4: fix BUG in ext4_mb_new_inode_pa() due to overflow ext4: avoid overlapping preallocations due to overflow ext4: add two helper functions extent_logical_end() and pa_logical_end() x86/mm: Fix RESERVE_BRK() for older binutils x86/mm: Simplify RESERVE_BRK() nfsd: lock_rename() needs both directories to live on the same fs f2fs: fix to do sanity check on inode type during garbage collection smbdirect: missing rc checks while waiting for rdma events kobject: Fix slab-out-of-bounds in fill_kobj_path() arm64: fix a concurrency issue in emulation_proc_handler() drm/dp_mst: Fix NULL deref in get_mst_branch_device_by_guid_helper() x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility i40e: Fix wrong check for I40E_TXR_FLAGS_WB_ON_ITR clk: Sanitize possible_parent_show to Handle Return Value of of_clk_get_parent_name perf/core: Fix potential NULL deref nvmem: imx: correct nregs for i.MX6UL nvmem: imx: correct nregs for i.MX6SLL nvmem: imx: correct nregs for i.MX6ULL i2c: aspeed: Fix i2c bus hang in slave read i2c: stm32f7: Fix PEC handling in case of SMBUS transfers i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-mux-gpmux: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-mux-pinctrl: Use of_get_i2c_adapter_by_node() iio: exynos-adc: request second interupt only when touchscreen mode is used gtp: fix fragmentation needed check with gso gtp: uapi: fix GTPA_MAX tcp: fix wrong RTO timeout when received SACK reneging r8152: Cancel hw_phy_work if we have an error in probe r8152: Run the unload routine if we have errors during probe r8152: Increase USB control msg timeout to 5000ms as per spec net: ieee802154: adf7242: Fix some potential buffer overflow in adf7242_stats_show() igc: Fix ambiguity in the ethtool advertising neighbour: fix various data-races igb: Fix potential memory leak in igb_add_ethtool_nfc_entry treewide: Spelling fix in comment r8169: fix the KCSAN reported data race in rtl_rx while reading desc->opts1 r8169: fix the KCSAN reported data-race in rtl_tx while reading TxDescArray[entry].opts1 virtio-mmio: fix memory leak of vm_dev virtio_balloon: Fix endless deflation and inflation on arm64 mcb-lpc: Reallocate memory region to avoid memory overlapping mcb: Return actual parsed size when reading chameleon table selftests/ftrace: Add new test case which checks non unique symbol mtd: rawnand: marvell: Ensure program page operations are successful Conflicts: drivers/clk/qcom/gcc-sm8150.c drivers/net/ethernet/stmicro/stmmac/stmmac_main.c drivers/soc/qcom/Kconfig drivers/soc/qcom/Makefile drivers/soc/qcom/llcc-qcom.c drivers/usb/dwc3/core.c drivers/usb/gadget/function/f_ncm.c include/linux/soc/qcom/llcc-qcom.h include/net/netfilter/nf_tables.h mm/memory-failure.c net/netfilter/nf_tables_api.c net/netfilter/nft_set_hash.c net/netfilter/nft_set_rbtree.c Notes: * Dropped the following upstream commits:813fddd
| AOSP soc: qcom: Rename llcc-slice to llcc-qcom0770107
| AOSP soc: qcom: llcc cleanup to get rid of sdm845 specific driver file Change-Id: Id31af0559be59eccc0cd242940754292baed09f7
1287 lines
34 KiB
C
1287 lines
34 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* drivers/base/dd.c - The core device/driver interactions.
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*
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* This file contains the (sometimes tricky) code that controls the
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* interactions between devices and drivers, which primarily includes
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* driver binding and unbinding.
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*
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* All of this code used to exist in drivers/base/bus.c, but was
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* relocated to here in the name of compartmentalization (since it wasn't
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* strictly code just for the 'struct bus_type'.
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*
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* Copyright (c) 2002-5 Patrick Mochel
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* Copyright (c) 2002-3 Open Source Development Labs
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* Copyright (c) 2007-2009 Greg Kroah-Hartman <gregkh@suse.de>
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* Copyright (c) 2007-2009 Novell Inc.
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*/
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#include <linux/debugfs.h>
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#include <linux/device.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kthread.h>
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#include <linux/wait.h>
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#include <linux/async.h>
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#include <linux/pm_runtime.h>
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#include <linux/pinctrl/devinfo.h>
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#include "base.h"
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#include "power/power.h"
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/*
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* Deferred Probe infrastructure.
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*
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* Sometimes driver probe order matters, but the kernel doesn't always have
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* dependency information which means some drivers will get probed before a
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* resource it depends on is available. For example, an SDHCI driver may
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* first need a GPIO line from an i2c GPIO controller before it can be
|
|
* initialized. If a required resource is not available yet, a driver can
|
|
* request probing to be deferred by returning -EPROBE_DEFER from its probe hook
|
|
*
|
|
* Deferred probe maintains two lists of devices, a pending list and an active
|
|
* list. A driver returning -EPROBE_DEFER causes the device to be added to the
|
|
* pending list. A successful driver probe will trigger moving all devices
|
|
* from the pending to the active list so that the workqueue will eventually
|
|
* retry them.
|
|
*
|
|
* The deferred_probe_mutex must be held any time the deferred_probe_*_list
|
|
* of the (struct device*)->p->deferred_probe pointers are manipulated
|
|
*/
|
|
static DEFINE_MUTEX(deferred_probe_mutex);
|
|
static LIST_HEAD(deferred_probe_pending_list);
|
|
static LIST_HEAD(deferred_probe_active_list);
|
|
static atomic_t deferred_trigger_count = ATOMIC_INIT(0);
|
|
static struct dentry *deferred_devices;
|
|
static bool initcalls_done;
|
|
|
|
/* Save the async probe drivers' name from kernel cmdline */
|
|
#define ASYNC_DRV_NAMES_MAX_LEN 256
|
|
static char async_probe_drv_names[ASYNC_DRV_NAMES_MAX_LEN];
|
|
|
|
/*
|
|
* In some cases, like suspend to RAM or hibernation, It might be reasonable
|
|
* to prohibit probing of devices as it could be unsafe.
|
|
* Once defer_all_probes is true all drivers probes will be forcibly deferred.
|
|
*/
|
|
static bool defer_all_probes;
|
|
|
|
/*
|
|
* deferred_probe_work_func() - Retry probing devices in the active list.
|
|
*/
|
|
static void deferred_probe_work_func(struct work_struct *work)
|
|
{
|
|
struct device *dev;
|
|
struct device_private *private;
|
|
/*
|
|
* This block processes every device in the deferred 'active' list.
|
|
* Each device is removed from the active list and passed to
|
|
* bus_probe_device() to re-attempt the probe. The loop continues
|
|
* until every device in the active list is removed and retried.
|
|
*
|
|
* Note: Once the device is removed from the list and the mutex is
|
|
* released, it is possible for the device get freed by another thread
|
|
* and cause a illegal pointer dereference. This code uses
|
|
* get/put_device() to ensure the device structure cannot disappear
|
|
* from under our feet.
|
|
*/
|
|
mutex_lock(&deferred_probe_mutex);
|
|
while (!list_empty(&deferred_probe_active_list)) {
|
|
private = list_first_entry(&deferred_probe_active_list,
|
|
typeof(*dev->p), deferred_probe);
|
|
dev = private->device;
|
|
list_del_init(&private->deferred_probe);
|
|
|
|
get_device(dev);
|
|
|
|
/*
|
|
* Drop the mutex while probing each device; the probe path may
|
|
* manipulate the deferred list
|
|
*/
|
|
mutex_unlock(&deferred_probe_mutex);
|
|
|
|
/*
|
|
* Force the device to the end of the dpm_list since
|
|
* the PM code assumes that the order we add things to
|
|
* the list is a good order for suspend but deferred
|
|
* probe makes that very unsafe.
|
|
*/
|
|
device_pm_move_to_tail(dev);
|
|
|
|
dev_dbg(dev, "Retrying from deferred list\n");
|
|
bus_probe_device(dev);
|
|
mutex_lock(&deferred_probe_mutex);
|
|
|
|
put_device(dev);
|
|
}
|
|
mutex_unlock(&deferred_probe_mutex);
|
|
}
|
|
static DECLARE_WORK(deferred_probe_work, deferred_probe_work_func);
|
|
|
|
void driver_deferred_probe_add(struct device *dev)
|
|
{
|
|
mutex_lock(&deferred_probe_mutex);
|
|
if (list_empty(&dev->p->deferred_probe)) {
|
|
dev_dbg(dev, "Added to deferred list\n");
|
|
list_add_tail(&dev->p->deferred_probe, &deferred_probe_pending_list);
|
|
}
|
|
mutex_unlock(&deferred_probe_mutex);
|
|
}
|
|
|
|
void driver_deferred_probe_del(struct device *dev)
|
|
{
|
|
mutex_lock(&deferred_probe_mutex);
|
|
if (!list_empty(&dev->p->deferred_probe)) {
|
|
dev_dbg(dev, "Removed from deferred list\n");
|
|
list_del_init(&dev->p->deferred_probe);
|
|
}
|
|
mutex_unlock(&deferred_probe_mutex);
|
|
}
|
|
|
|
static bool driver_deferred_probe_enable = false;
|
|
/**
|
|
* driver_deferred_probe_trigger() - Kick off re-probing deferred devices
|
|
*
|
|
* This functions moves all devices from the pending list to the active
|
|
* list and schedules the deferred probe workqueue to process them. It
|
|
* should be called anytime a driver is successfully bound to a device.
|
|
*
|
|
* Note, there is a race condition in multi-threaded probe. In the case where
|
|
* more than one device is probing at the same time, it is possible for one
|
|
* probe to complete successfully while another is about to defer. If the second
|
|
* depends on the first, then it will get put on the pending list after the
|
|
* trigger event has already occurred and will be stuck there.
|
|
*
|
|
* The atomic 'deferred_trigger_count' is used to determine if a successful
|
|
* trigger has occurred in the midst of probing a driver. If the trigger count
|
|
* changes in the midst of a probe, then deferred processing should be triggered
|
|
* again.
|
|
*/
|
|
static void driver_deferred_probe_trigger(void)
|
|
{
|
|
if (!driver_deferred_probe_enable)
|
|
return;
|
|
|
|
/*
|
|
* A successful probe means that all the devices in the pending list
|
|
* should be triggered to be reprobed. Move all the deferred devices
|
|
* into the active list so they can be retried by the workqueue
|
|
*/
|
|
mutex_lock(&deferred_probe_mutex);
|
|
atomic_inc(&deferred_trigger_count);
|
|
list_splice_tail_init(&deferred_probe_pending_list,
|
|
&deferred_probe_active_list);
|
|
mutex_unlock(&deferred_probe_mutex);
|
|
|
|
/*
|
|
* Kick the re-probe thread. It may already be scheduled, but it is
|
|
* safe to kick it again.
|
|
*/
|
|
queue_work(system_unbound_wq, &deferred_probe_work);
|
|
}
|
|
|
|
/**
|
|
* device_block_probing() - Block/defer device's probes
|
|
*
|
|
* It will disable probing of devices and defer their probes instead.
|
|
*/
|
|
void device_block_probing(void)
|
|
{
|
|
defer_all_probes = true;
|
|
/* sync with probes to avoid races. */
|
|
wait_for_device_probe();
|
|
}
|
|
|
|
/**
|
|
* device_unblock_probing() - Unblock/enable device's probes
|
|
*
|
|
* It will restore normal behavior and trigger re-probing of deferred
|
|
* devices.
|
|
*/
|
|
void device_unblock_probing(void)
|
|
{
|
|
defer_all_probes = false;
|
|
driver_deferred_probe_trigger();
|
|
}
|
|
|
|
/*
|
|
* deferred_devs_show() - Show the devices in the deferred probe pending list.
|
|
*/
|
|
static int deferred_devs_show(struct seq_file *s, void *data)
|
|
{
|
|
struct device_private *curr;
|
|
|
|
mutex_lock(&deferred_probe_mutex);
|
|
|
|
list_for_each_entry(curr, &deferred_probe_pending_list, deferred_probe)
|
|
seq_printf(s, "%s\n", dev_name(curr->device));
|
|
|
|
mutex_unlock(&deferred_probe_mutex);
|
|
|
|
return 0;
|
|
}
|
|
DEFINE_SHOW_ATTRIBUTE(deferred_devs);
|
|
|
|
static int deferred_probe_timeout = -1;
|
|
static int __init deferred_probe_timeout_setup(char *str)
|
|
{
|
|
int timeout;
|
|
|
|
if (!kstrtoint(str, 10, &timeout))
|
|
deferred_probe_timeout = timeout;
|
|
return 1;
|
|
}
|
|
__setup("deferred_probe_timeout=", deferred_probe_timeout_setup);
|
|
|
|
static int __driver_deferred_probe_check_state(struct device *dev)
|
|
{
|
|
if (!initcalls_done)
|
|
return -EPROBE_DEFER;
|
|
|
|
if (!deferred_probe_timeout) {
|
|
dev_WARN(dev, "deferred probe timeout, ignoring dependency");
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* driver_deferred_probe_check_state() - Check deferred probe state
|
|
* @dev: device to check
|
|
*
|
|
* Returns -ENODEV if init is done and all built-in drivers have had a chance
|
|
* to probe (i.e. initcalls are done), -ETIMEDOUT if deferred probe debug
|
|
* timeout has expired, or -EPROBE_DEFER if none of those conditions are met.
|
|
*
|
|
* Drivers or subsystems can opt-in to calling this function instead of directly
|
|
* returning -EPROBE_DEFER.
|
|
*/
|
|
int driver_deferred_probe_check_state(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = __driver_deferred_probe_check_state(dev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
dev_warn(dev, "ignoring dependency for device, assuming no driver");
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
/**
|
|
* driver_deferred_probe_check_state_continue() - check deferred probe state
|
|
* @dev: device to check
|
|
*
|
|
* Returns -ETIMEDOUT if deferred probe debug timeout has expired, or
|
|
* -EPROBE_DEFER otherwise.
|
|
*
|
|
* Drivers or subsystems can opt-in to calling this function instead of
|
|
* directly returning -EPROBE_DEFER.
|
|
*
|
|
* This is similar to driver_deferred_probe_check_state(), but it allows the
|
|
* subsystem to keep deferring probe after built-in drivers have had a chance
|
|
* to probe. One scenario where that is useful is if built-in drivers rely on
|
|
* resources that are provided by modular drivers.
|
|
*/
|
|
int driver_deferred_probe_check_state_continue(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = __driver_deferred_probe_check_state(dev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return -EPROBE_DEFER;
|
|
}
|
|
|
|
static void deferred_probe_timeout_work_func(struct work_struct *work)
|
|
{
|
|
struct device_private *p;
|
|
|
|
deferred_probe_timeout = 0;
|
|
driver_deferred_probe_trigger();
|
|
flush_work(&deferred_probe_work);
|
|
|
|
mutex_lock(&deferred_probe_mutex);
|
|
list_for_each_entry(p, &deferred_probe_pending_list, deferred_probe)
|
|
dev_info(p->device, "deferred probe pending\n");
|
|
mutex_unlock(&deferred_probe_mutex);
|
|
}
|
|
static DECLARE_DELAYED_WORK(deferred_probe_timeout_work, deferred_probe_timeout_work_func);
|
|
|
|
/**
|
|
* deferred_probe_initcall() - Enable probing of deferred devices
|
|
*
|
|
* We don't want to get in the way when the bulk of drivers are getting probed.
|
|
* Instead, this initcall makes sure that deferred probing is delayed until
|
|
* late_initcall time.
|
|
*/
|
|
static int deferred_probe_initcall(void)
|
|
{
|
|
deferred_devices = debugfs_create_file("devices_deferred", 0444, NULL,
|
|
NULL, &deferred_devs_fops);
|
|
|
|
driver_deferred_probe_enable = true;
|
|
driver_deferred_probe_trigger();
|
|
/* Sort as many dependencies as possible before exiting initcalls */
|
|
flush_work(&deferred_probe_work);
|
|
initcalls_done = true;
|
|
|
|
/*
|
|
* Trigger deferred probe again, this time we won't defer anything
|
|
* that is optional
|
|
*/
|
|
driver_deferred_probe_trigger();
|
|
flush_work(&deferred_probe_work);
|
|
|
|
if (deferred_probe_timeout > 0) {
|
|
schedule_delayed_work(&deferred_probe_timeout_work,
|
|
deferred_probe_timeout * HZ);
|
|
}
|
|
return 0;
|
|
}
|
|
late_initcall(deferred_probe_initcall);
|
|
|
|
static void __exit deferred_probe_exit(void)
|
|
{
|
|
debugfs_remove_recursive(deferred_devices);
|
|
}
|
|
__exitcall(deferred_probe_exit);
|
|
|
|
/**
|
|
* device_is_bound() - Check if device is bound to a driver
|
|
* @dev: device to check
|
|
*
|
|
* Returns true if passed device has already finished probing successfully
|
|
* against a driver.
|
|
*
|
|
* This function must be called with the device lock held.
|
|
*/
|
|
bool device_is_bound(struct device *dev)
|
|
{
|
|
return dev->p && klist_node_attached(&dev->p->knode_driver);
|
|
}
|
|
|
|
static void driver_bound(struct device *dev)
|
|
{
|
|
if (device_is_bound(dev)) {
|
|
printk(KERN_WARNING "%s: device %s already bound\n",
|
|
__func__, kobject_name(&dev->kobj));
|
|
return;
|
|
}
|
|
|
|
pr_debug("driver: '%s': %s: bound to device '%s'\n", dev->driver->name,
|
|
__func__, dev_name(dev));
|
|
|
|
klist_add_tail(&dev->p->knode_driver, &dev->driver->p->klist_devices);
|
|
device_links_driver_bound(dev);
|
|
|
|
device_pm_check_callbacks(dev);
|
|
|
|
/*
|
|
* Make sure the device is no longer in one of the deferred lists and
|
|
* kick off retrying all pending devices
|
|
*/
|
|
driver_deferred_probe_del(dev);
|
|
driver_deferred_probe_trigger();
|
|
|
|
if (dev->bus)
|
|
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
|
|
BUS_NOTIFY_BOUND_DRIVER, dev);
|
|
|
|
kobject_uevent(&dev->kobj, KOBJ_BIND);
|
|
}
|
|
|
|
static ssize_t coredump_store(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
device_lock(dev);
|
|
dev->driver->coredump(dev);
|
|
device_unlock(dev);
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR_WO(coredump);
|
|
|
|
static int driver_sysfs_add(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
if (dev->bus)
|
|
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
|
|
BUS_NOTIFY_BIND_DRIVER, dev);
|
|
|
|
ret = sysfs_create_link(&dev->driver->p->kobj, &dev->kobj,
|
|
kobject_name(&dev->kobj));
|
|
if (ret)
|
|
goto fail;
|
|
|
|
ret = sysfs_create_link(&dev->kobj, &dev->driver->p->kobj,
|
|
"driver");
|
|
if (ret)
|
|
goto rm_dev;
|
|
|
|
if (!IS_ENABLED(CONFIG_DEV_COREDUMP) || !dev->driver->coredump ||
|
|
!device_create_file(dev, &dev_attr_coredump))
|
|
return 0;
|
|
|
|
sysfs_remove_link(&dev->kobj, "driver");
|
|
|
|
rm_dev:
|
|
sysfs_remove_link(&dev->driver->p->kobj,
|
|
kobject_name(&dev->kobj));
|
|
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
static void driver_sysfs_remove(struct device *dev)
|
|
{
|
|
struct device_driver *drv = dev->driver;
|
|
|
|
if (drv) {
|
|
if (drv->coredump)
|
|
device_remove_file(dev, &dev_attr_coredump);
|
|
sysfs_remove_link(&drv->p->kobj, kobject_name(&dev->kobj));
|
|
sysfs_remove_link(&dev->kobj, "driver");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* device_bind_driver - bind a driver to one device.
|
|
* @dev: device.
|
|
*
|
|
* Allow manual attachment of a driver to a device.
|
|
* Caller must have already set @dev->driver.
|
|
*
|
|
* Note that this does not modify the bus reference count
|
|
* nor take the bus's rwsem. Please verify those are accounted
|
|
* for before calling this. (It is ok to call with no other effort
|
|
* from a driver's probe() method.)
|
|
*
|
|
* This function must be called with the device lock held.
|
|
*/
|
|
int device_bind_driver(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = driver_sysfs_add(dev);
|
|
if (!ret)
|
|
driver_bound(dev);
|
|
else if (dev->bus)
|
|
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
|
|
BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(device_bind_driver);
|
|
|
|
static atomic_t probe_count = ATOMIC_INIT(0);
|
|
static DECLARE_WAIT_QUEUE_HEAD(probe_waitqueue);
|
|
|
|
static void driver_deferred_probe_add_trigger(struct device *dev,
|
|
int local_trigger_count)
|
|
{
|
|
driver_deferred_probe_add(dev);
|
|
/* Did a trigger occur while probing? Need to re-trigger if yes */
|
|
if (local_trigger_count != atomic_read(&deferred_trigger_count))
|
|
driver_deferred_probe_trigger();
|
|
}
|
|
|
|
static ssize_t state_synced_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
bool val;
|
|
|
|
device_lock(dev);
|
|
val = dev->state_synced;
|
|
device_unlock(dev);
|
|
return sprintf(buf, "%u\n", val);
|
|
}
|
|
static DEVICE_ATTR_RO(state_synced);
|
|
|
|
static int really_probe(struct device *dev, struct device_driver *drv)
|
|
{
|
|
int ret = -EPROBE_DEFER;
|
|
int local_trigger_count = atomic_read(&deferred_trigger_count);
|
|
bool test_remove = IS_ENABLED(CONFIG_DEBUG_TEST_DRIVER_REMOVE) &&
|
|
!drv->suppress_bind_attrs;
|
|
|
|
if (defer_all_probes) {
|
|
/*
|
|
* Value of defer_all_probes can be set only by
|
|
* device_block_probing() which, in turn, will call
|
|
* wait_for_device_probe() right after that to avoid any races.
|
|
*/
|
|
dev_dbg(dev, "Driver %s force probe deferral\n", drv->name);
|
|
driver_deferred_probe_add(dev);
|
|
return ret;
|
|
}
|
|
|
|
ret = device_links_check_suppliers(dev);
|
|
if (ret == -EPROBE_DEFER)
|
|
driver_deferred_probe_add_trigger(dev, local_trigger_count);
|
|
if (ret)
|
|
return ret;
|
|
|
|
atomic_inc(&probe_count);
|
|
pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
|
|
drv->bus->name, __func__, drv->name, dev_name(dev));
|
|
if (!list_empty(&dev->devres_head)) {
|
|
dev_crit(dev, "Resources present before probing\n");
|
|
ret = -EBUSY;
|
|
goto done;
|
|
}
|
|
|
|
re_probe:
|
|
dev->driver = drv;
|
|
|
|
/* If using pinctrl, bind pins now before probing */
|
|
ret = pinctrl_bind_pins(dev);
|
|
if (ret)
|
|
goto pinctrl_bind_failed;
|
|
|
|
if (dev->bus->dma_configure) {
|
|
ret = dev->bus->dma_configure(dev);
|
|
if (ret)
|
|
goto probe_failed;
|
|
}
|
|
|
|
ret = driver_sysfs_add(dev);
|
|
if (ret) {
|
|
printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
|
|
__func__, dev_name(dev));
|
|
goto probe_failed;
|
|
}
|
|
|
|
if (dev->pm_domain && dev->pm_domain->activate) {
|
|
ret = dev->pm_domain->activate(dev);
|
|
if (ret)
|
|
goto probe_failed;
|
|
}
|
|
|
|
if (dev->bus->probe) {
|
|
ret = dev->bus->probe(dev);
|
|
if (ret)
|
|
goto probe_failed;
|
|
} else if (drv->probe) {
|
|
ret = drv->probe(dev);
|
|
if (ret)
|
|
goto probe_failed;
|
|
}
|
|
|
|
ret = device_add_groups(dev, drv->dev_groups);
|
|
if (ret) {
|
|
dev_err(dev, "device_add_groups() failed\n");
|
|
goto dev_groups_failed;
|
|
}
|
|
|
|
if (dev_has_sync_state(dev)) {
|
|
ret = device_create_file(dev, &dev_attr_state_synced);
|
|
if (ret) {
|
|
dev_err(dev, "state_synced sysfs add failed\n");
|
|
goto dev_sysfs_state_synced_failed;
|
|
}
|
|
}
|
|
|
|
if (test_remove) {
|
|
test_remove = false;
|
|
|
|
device_remove_file(dev, &dev_attr_state_synced);
|
|
device_remove_groups(dev, drv->dev_groups);
|
|
|
|
if (dev->bus->remove)
|
|
dev->bus->remove(dev);
|
|
else if (drv->remove)
|
|
drv->remove(dev);
|
|
|
|
devres_release_all(dev);
|
|
driver_sysfs_remove(dev);
|
|
dev->driver = NULL;
|
|
dev_set_drvdata(dev, NULL);
|
|
if (dev->pm_domain && dev->pm_domain->dismiss)
|
|
dev->pm_domain->dismiss(dev);
|
|
pm_runtime_reinit(dev);
|
|
|
|
goto re_probe;
|
|
}
|
|
|
|
pinctrl_init_done(dev);
|
|
|
|
if (dev->pm_domain && dev->pm_domain->sync)
|
|
dev->pm_domain->sync(dev);
|
|
|
|
driver_bound(dev);
|
|
ret = 1;
|
|
pr_debug("bus: '%s': %s: bound device %s to driver %s\n",
|
|
drv->bus->name, __func__, dev_name(dev), drv->name);
|
|
goto done;
|
|
|
|
dev_sysfs_state_synced_failed:
|
|
device_remove_groups(dev, drv->dev_groups);
|
|
dev_groups_failed:
|
|
if (dev->bus->remove)
|
|
dev->bus->remove(dev);
|
|
else if (drv->remove)
|
|
drv->remove(dev);
|
|
probe_failed:
|
|
if (dev->bus)
|
|
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
|
|
BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
|
|
pinctrl_bind_failed:
|
|
device_links_no_driver(dev);
|
|
devres_release_all(dev);
|
|
arch_teardown_dma_ops(dev);
|
|
driver_sysfs_remove(dev);
|
|
dev->driver = NULL;
|
|
dev_set_drvdata(dev, NULL);
|
|
if (dev->pm_domain && dev->pm_domain->dismiss)
|
|
dev->pm_domain->dismiss(dev);
|
|
pm_runtime_reinit(dev);
|
|
dev_pm_set_driver_flags(dev, 0);
|
|
|
|
switch (ret) {
|
|
case -EPROBE_DEFER:
|
|
/* Driver requested deferred probing */
|
|
dev_dbg(dev, "Driver %s requests probe deferral\n", drv->name);
|
|
driver_deferred_probe_add_trigger(dev, local_trigger_count);
|
|
break;
|
|
case -ENODEV:
|
|
case -ENXIO:
|
|
pr_debug("%s: probe of %s rejects match %d\n",
|
|
drv->name, dev_name(dev), ret);
|
|
break;
|
|
default:
|
|
/* driver matched but the probe failed */
|
|
printk(KERN_WARNING
|
|
"%s: probe of %s failed with error %d\n",
|
|
drv->name, dev_name(dev), ret);
|
|
}
|
|
/*
|
|
* Ignore errors returned by ->probe so that the next driver can try
|
|
* its luck.
|
|
*/
|
|
ret = 0;
|
|
done:
|
|
atomic_dec(&probe_count);
|
|
wake_up_all(&probe_waitqueue);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* For initcall_debug, show the driver probe time.
|
|
*/
|
|
static int really_probe_debug(struct device *dev, struct device_driver *drv)
|
|
{
|
|
ktime_t calltime, delta, rettime;
|
|
int ret;
|
|
|
|
calltime = ktime_get();
|
|
ret = really_probe(dev, drv);
|
|
rettime = ktime_get();
|
|
delta = ktime_sub(rettime, calltime);
|
|
printk(KERN_DEBUG "probe of %s returned %d after %lld usecs\n",
|
|
dev_name(dev), ret, (s64) ktime_to_us(delta));
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* driver_probe_done
|
|
* Determine if the probe sequence is finished or not.
|
|
*
|
|
* Should somehow figure out how to use a semaphore, not an atomic variable...
|
|
*/
|
|
int driver_probe_done(void)
|
|
{
|
|
pr_debug("%s: probe_count = %d\n", __func__,
|
|
atomic_read(&probe_count));
|
|
if (atomic_read(&probe_count))
|
|
return -EBUSY;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* wait_for_device_probe
|
|
* Wait for device probing to be completed.
|
|
*/
|
|
void wait_for_device_probe(void)
|
|
{
|
|
/* wait for the deferred probe workqueue to finish */
|
|
flush_work(&deferred_probe_work);
|
|
|
|
/* wait for the known devices to complete their probing */
|
|
wait_event(probe_waitqueue, atomic_read(&probe_count) == 0);
|
|
async_synchronize_full();
|
|
}
|
|
EXPORT_SYMBOL_GPL(wait_for_device_probe);
|
|
|
|
/**
|
|
* driver_probe_device - attempt to bind device & driver together
|
|
* @drv: driver to bind a device to
|
|
* @dev: device to try to bind to the driver
|
|
*
|
|
* This function returns -ENODEV if the device is not registered,
|
|
* 1 if the device is bound successfully and 0 otherwise.
|
|
*
|
|
* This function must be called with @dev lock held. When called for a
|
|
* USB interface, @dev->parent lock must be held as well.
|
|
*
|
|
* If the device has a parent, runtime-resume the parent before driver probing.
|
|
*/
|
|
int driver_probe_device(struct device_driver *drv, struct device *dev)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (!device_is_registered(dev))
|
|
return -ENODEV;
|
|
|
|
pr_debug("bus: '%s': %s: matched device %s with driver %s\n",
|
|
drv->bus->name, __func__, dev_name(dev), drv->name);
|
|
|
|
pm_runtime_get_suppliers(dev);
|
|
if (dev->parent)
|
|
pm_runtime_get_sync(dev->parent);
|
|
|
|
pm_runtime_barrier(dev);
|
|
if (initcall_debug)
|
|
ret = really_probe_debug(dev, drv);
|
|
else
|
|
ret = really_probe(dev, drv);
|
|
pm_request_idle(dev);
|
|
|
|
if (dev->parent)
|
|
pm_runtime_put(dev->parent);
|
|
|
|
pm_runtime_put_suppliers(dev);
|
|
return ret;
|
|
}
|
|
|
|
static inline bool cmdline_requested_async_probing(const char *drv_name)
|
|
{
|
|
return parse_option_str(async_probe_drv_names, drv_name);
|
|
}
|
|
|
|
/* The option format is "driver_async_probe=drv_name1,drv_name2,..." */
|
|
static int __init save_async_options(char *buf)
|
|
{
|
|
if (strlen(buf) >= ASYNC_DRV_NAMES_MAX_LEN)
|
|
printk(KERN_WARNING
|
|
"Too long list of driver names for 'driver_async_probe'!\n");
|
|
|
|
strlcpy(async_probe_drv_names, buf, ASYNC_DRV_NAMES_MAX_LEN);
|
|
return 1;
|
|
}
|
|
__setup("driver_async_probe=", save_async_options);
|
|
|
|
bool driver_allows_async_probing(struct device_driver *drv)
|
|
{
|
|
switch (drv->probe_type) {
|
|
case PROBE_PREFER_ASYNCHRONOUS:
|
|
return true;
|
|
|
|
case PROBE_FORCE_SYNCHRONOUS:
|
|
return false;
|
|
|
|
default:
|
|
if (cmdline_requested_async_probing(drv->name))
|
|
return true;
|
|
|
|
if (module_requested_async_probing(drv->owner))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
struct device_attach_data {
|
|
struct device *dev;
|
|
|
|
/*
|
|
* Indicates whether we are are considering asynchronous probing or
|
|
* not. Only initial binding after device or driver registration
|
|
* (including deferral processing) may be done asynchronously, the
|
|
* rest is always synchronous, as we expect it is being done by
|
|
* request from userspace.
|
|
*/
|
|
bool check_async;
|
|
|
|
/*
|
|
* Indicates if we are binding synchronous or asynchronous drivers.
|
|
* When asynchronous probing is enabled we'll execute 2 passes
|
|
* over drivers: first pass doing synchronous probing and second
|
|
* doing asynchronous probing (if synchronous did not succeed -
|
|
* most likely because there was no driver requiring synchronous
|
|
* probing - and we found asynchronous driver during first pass).
|
|
* The 2 passes are done because we can't shoot asynchronous
|
|
* probe for given device and driver from bus_for_each_drv() since
|
|
* driver pointer is not guaranteed to stay valid once
|
|
* bus_for_each_drv() iterates to the next driver on the bus.
|
|
*/
|
|
bool want_async;
|
|
|
|
/*
|
|
* We'll set have_async to 'true' if, while scanning for matching
|
|
* driver, we'll encounter one that requests asynchronous probing.
|
|
*/
|
|
bool have_async;
|
|
};
|
|
|
|
static int __device_attach_driver(struct device_driver *drv, void *_data)
|
|
{
|
|
struct device_attach_data *data = _data;
|
|
struct device *dev = data->dev;
|
|
bool async_allowed;
|
|
int ret;
|
|
|
|
ret = driver_match_device(drv, dev);
|
|
if (ret == 0) {
|
|
/* no match */
|
|
return 0;
|
|
} else if (ret == -EPROBE_DEFER) {
|
|
dev_dbg(dev, "Device match requests probe deferral\n");
|
|
driver_deferred_probe_add(dev);
|
|
/*
|
|
* Device can't match with a driver right now, so don't attempt
|
|
* to match or bind with other drivers on the bus.
|
|
*/
|
|
return ret;
|
|
} else if (ret < 0) {
|
|
dev_dbg(dev, "Bus failed to match device: %d", ret);
|
|
return ret;
|
|
} /* ret > 0 means positive match */
|
|
|
|
async_allowed = driver_allows_async_probing(drv);
|
|
|
|
if (async_allowed)
|
|
data->have_async = true;
|
|
|
|
if (data->check_async && async_allowed != data->want_async)
|
|
return 0;
|
|
|
|
return driver_probe_device(drv, dev);
|
|
}
|
|
|
|
static void __device_attach_async_helper(void *_dev, async_cookie_t cookie)
|
|
{
|
|
struct device *dev = _dev;
|
|
struct device_attach_data data = {
|
|
.dev = dev,
|
|
.check_async = true,
|
|
.want_async = true,
|
|
};
|
|
|
|
device_lock(dev);
|
|
|
|
/*
|
|
* Check if device has already been removed or claimed. This may
|
|
* happen with driver loading, device discovery/registration,
|
|
* and deferred probe processing happens all at once with
|
|
* multiple threads.
|
|
*/
|
|
if (dev->p->dead || dev->driver)
|
|
goto out_unlock;
|
|
|
|
if (dev->parent)
|
|
pm_runtime_get_sync(dev->parent);
|
|
|
|
bus_for_each_drv(dev->bus, NULL, &data, __device_attach_driver);
|
|
dev_dbg(dev, "async probe completed\n");
|
|
|
|
pm_request_idle(dev);
|
|
|
|
if (dev->parent)
|
|
pm_runtime_put(dev->parent);
|
|
out_unlock:
|
|
device_unlock(dev);
|
|
|
|
put_device(dev);
|
|
}
|
|
|
|
static int __device_attach(struct device *dev, bool allow_async)
|
|
{
|
|
int ret = 0;
|
|
bool async = false;
|
|
|
|
device_lock(dev);
|
|
if (dev->p->dead) {
|
|
goto out_unlock;
|
|
} else if (dev->driver) {
|
|
if (device_is_bound(dev)) {
|
|
ret = 1;
|
|
goto out_unlock;
|
|
}
|
|
ret = device_bind_driver(dev);
|
|
if (ret == 0)
|
|
ret = 1;
|
|
else {
|
|
dev->driver = NULL;
|
|
ret = 0;
|
|
}
|
|
} else {
|
|
struct device_attach_data data = {
|
|
.dev = dev,
|
|
.check_async = allow_async,
|
|
.want_async = false,
|
|
};
|
|
|
|
if (dev->parent)
|
|
pm_runtime_get_sync(dev->parent);
|
|
|
|
ret = bus_for_each_drv(dev->bus, NULL, &data,
|
|
__device_attach_driver);
|
|
if (!ret && allow_async && data.have_async) {
|
|
/*
|
|
* If we could not find appropriate driver
|
|
* synchronously and we are allowed to do
|
|
* async probes and there are drivers that
|
|
* want to probe asynchronously, we'll
|
|
* try them.
|
|
*/
|
|
dev_dbg(dev, "scheduling asynchronous probe\n");
|
|
get_device(dev);
|
|
async = true;
|
|
} else {
|
|
pm_request_idle(dev);
|
|
}
|
|
|
|
if (dev->parent)
|
|
pm_runtime_put(dev->parent);
|
|
}
|
|
out_unlock:
|
|
device_unlock(dev);
|
|
if (async)
|
|
async_schedule_dev(__device_attach_async_helper, dev);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* device_attach - try to attach device to a driver.
|
|
* @dev: device.
|
|
*
|
|
* Walk the list of drivers that the bus has and call
|
|
* driver_probe_device() for each pair. If a compatible
|
|
* pair is found, break out and return.
|
|
*
|
|
* Returns 1 if the device was bound to a driver;
|
|
* 0 if no matching driver was found;
|
|
* -ENODEV if the device is not registered.
|
|
*
|
|
* When called for a USB interface, @dev->parent lock must be held.
|
|
*/
|
|
int device_attach(struct device *dev)
|
|
{
|
|
return __device_attach(dev, false);
|
|
}
|
|
EXPORT_SYMBOL_GPL(device_attach);
|
|
|
|
void device_initial_probe(struct device *dev)
|
|
{
|
|
__device_attach(dev, true);
|
|
}
|
|
|
|
/*
|
|
* __device_driver_lock - acquire locks needed to manipulate dev->drv
|
|
* @dev: Device we will update driver info for
|
|
* @parent: Parent device. Needed if the bus requires parent lock
|
|
*
|
|
* This function will take the required locks for manipulating dev->drv.
|
|
* Normally this will just be the @dev lock, but when called for a USB
|
|
* interface, @parent lock will be held as well.
|
|
*/
|
|
static void __device_driver_lock(struct device *dev, struct device *parent)
|
|
{
|
|
if (parent && dev->bus->need_parent_lock)
|
|
device_lock(parent);
|
|
device_lock(dev);
|
|
}
|
|
|
|
/*
|
|
* __device_driver_unlock - release locks needed to manipulate dev->drv
|
|
* @dev: Device we will update driver info for
|
|
* @parent: Parent device. Needed if the bus requires parent lock
|
|
*
|
|
* This function will release the required locks for manipulating dev->drv.
|
|
* Normally this will just be the the @dev lock, but when called for a
|
|
* USB interface, @parent lock will be released as well.
|
|
*/
|
|
static void __device_driver_unlock(struct device *dev, struct device *parent)
|
|
{
|
|
device_unlock(dev);
|
|
if (parent && dev->bus->need_parent_lock)
|
|
device_unlock(parent);
|
|
}
|
|
|
|
/**
|
|
* device_driver_attach - attach a specific driver to a specific device
|
|
* @drv: Driver to attach
|
|
* @dev: Device to attach it to
|
|
*
|
|
* Manually attach driver to a device. Will acquire both @dev lock and
|
|
* @dev->parent lock if needed.
|
|
*/
|
|
int device_driver_attach(struct device_driver *drv, struct device *dev)
|
|
{
|
|
int ret = 0;
|
|
|
|
__device_driver_lock(dev, dev->parent);
|
|
|
|
/*
|
|
* If device has been removed or someone has already successfully
|
|
* bound a driver before us just skip the driver probe call.
|
|
*/
|
|
if (!dev->p->dead && !dev->driver)
|
|
ret = driver_probe_device(drv, dev);
|
|
|
|
__device_driver_unlock(dev, dev->parent);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __driver_attach_async_helper(void *_dev, async_cookie_t cookie)
|
|
{
|
|
struct device *dev = _dev;
|
|
struct device_driver *drv;
|
|
int ret = 0;
|
|
|
|
__device_driver_lock(dev, dev->parent);
|
|
|
|
drv = dev->p->async_driver;
|
|
|
|
/*
|
|
* If device has been removed or someone has already successfully
|
|
* bound a driver before us just skip the driver probe call.
|
|
*/
|
|
if (!dev->p->dead && !dev->driver)
|
|
ret = driver_probe_device(drv, dev);
|
|
|
|
__device_driver_unlock(dev, dev->parent);
|
|
|
|
dev_dbg(dev, "driver %s async attach completed: %d\n", drv->name, ret);
|
|
|
|
put_device(dev);
|
|
}
|
|
|
|
static int __driver_attach(struct device *dev, void *data)
|
|
{
|
|
struct device_driver *drv = data;
|
|
bool async = false;
|
|
int ret;
|
|
|
|
/*
|
|
* Lock device and try to bind to it. We drop the error
|
|
* here and always return 0, because we need to keep trying
|
|
* to bind to devices and some drivers will return an error
|
|
* simply if it didn't support the device.
|
|
*
|
|
* driver_probe_device() will spit a warning if there
|
|
* is an error.
|
|
*/
|
|
|
|
ret = driver_match_device(drv, dev);
|
|
if (ret == 0) {
|
|
/* no match */
|
|
return 0;
|
|
} else if (ret == -EPROBE_DEFER) {
|
|
dev_dbg(dev, "Device match requests probe deferral\n");
|
|
driver_deferred_probe_add(dev);
|
|
/*
|
|
* Driver could not match with device, but may match with
|
|
* another device on the bus.
|
|
*/
|
|
return 0;
|
|
} else if (ret < 0) {
|
|
dev_dbg(dev, "Bus failed to match device: %d\n", ret);
|
|
/*
|
|
* Driver could not match with device, but may match with
|
|
* another device on the bus.
|
|
*/
|
|
return 0;
|
|
} /* ret > 0 means positive match */
|
|
|
|
if (driver_allows_async_probing(drv)) {
|
|
/*
|
|
* Instead of probing the device synchronously we will
|
|
* probe it asynchronously to allow for more parallelism.
|
|
*
|
|
* We only take the device lock here in order to guarantee
|
|
* that the dev->driver and async_driver fields are protected
|
|
*/
|
|
dev_dbg(dev, "probing driver %s asynchronously\n", drv->name);
|
|
device_lock(dev);
|
|
if (!dev->driver) {
|
|
get_device(dev);
|
|
dev->p->async_driver = drv;
|
|
async = true;
|
|
}
|
|
device_unlock(dev);
|
|
if (async)
|
|
async_schedule_dev(__driver_attach_async_helper, dev);
|
|
return 0;
|
|
}
|
|
|
|
device_driver_attach(drv, dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* driver_attach - try to bind driver to devices.
|
|
* @drv: driver.
|
|
*
|
|
* Walk the list of devices that the bus has on it and try to
|
|
* match the driver with each one. If driver_probe_device()
|
|
* returns 0 and the @dev->driver is set, we've found a
|
|
* compatible pair.
|
|
*/
|
|
int driver_attach(struct device_driver *drv)
|
|
{
|
|
return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach);
|
|
}
|
|
EXPORT_SYMBOL_GPL(driver_attach);
|
|
|
|
/*
|
|
* __device_release_driver() must be called with @dev lock held.
|
|
* When called for a USB interface, @dev->parent lock must be held as well.
|
|
*/
|
|
static void __device_release_driver(struct device *dev, struct device *parent)
|
|
{
|
|
struct device_driver *drv;
|
|
|
|
drv = dev->driver;
|
|
if (drv) {
|
|
pm_runtime_get_sync(dev);
|
|
|
|
while (device_links_busy(dev)) {
|
|
__device_driver_unlock(dev, parent);
|
|
|
|
device_links_unbind_consumers(dev);
|
|
|
|
__device_driver_lock(dev, parent);
|
|
/*
|
|
* A concurrent invocation of the same function might
|
|
* have released the driver successfully while this one
|
|
* was waiting, so check for that.
|
|
*/
|
|
if (dev->driver != drv) {
|
|
pm_runtime_put(dev);
|
|
return;
|
|
}
|
|
}
|
|
|
|
driver_sysfs_remove(dev);
|
|
|
|
if (dev->bus)
|
|
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
|
|
BUS_NOTIFY_UNBIND_DRIVER,
|
|
dev);
|
|
|
|
pm_runtime_put_sync(dev);
|
|
|
|
device_remove_file(dev, &dev_attr_state_synced);
|
|
device_remove_groups(dev, drv->dev_groups);
|
|
|
|
if (dev->bus && dev->bus->remove)
|
|
dev->bus->remove(dev);
|
|
else if (drv->remove)
|
|
drv->remove(dev);
|
|
|
|
devres_release_all(dev);
|
|
arch_teardown_dma_ops(dev);
|
|
dev->driver = NULL;
|
|
dev_set_drvdata(dev, NULL);
|
|
if (dev->pm_domain && dev->pm_domain->dismiss)
|
|
dev->pm_domain->dismiss(dev);
|
|
pm_runtime_reinit(dev);
|
|
dev_pm_set_driver_flags(dev, 0);
|
|
|
|
device_links_driver_cleanup(dev);
|
|
|
|
klist_remove(&dev->p->knode_driver);
|
|
device_pm_check_callbacks(dev);
|
|
if (dev->bus)
|
|
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
|
|
BUS_NOTIFY_UNBOUND_DRIVER,
|
|
dev);
|
|
|
|
kobject_uevent(&dev->kobj, KOBJ_UNBIND);
|
|
}
|
|
}
|
|
|
|
void device_release_driver_internal(struct device *dev,
|
|
struct device_driver *drv,
|
|
struct device *parent)
|
|
{
|
|
__device_driver_lock(dev, parent);
|
|
|
|
if (!drv || drv == dev->driver)
|
|
__device_release_driver(dev, parent);
|
|
|
|
__device_driver_unlock(dev, parent);
|
|
}
|
|
|
|
/**
|
|
* device_release_driver - manually detach device from driver.
|
|
* @dev: device.
|
|
*
|
|
* Manually detach device from driver.
|
|
* When called for a USB interface, @dev->parent lock must be held.
|
|
*
|
|
* If this function is to be called with @dev->parent lock held, ensure that
|
|
* the device's consumers are unbound in advance or that their locks can be
|
|
* acquired under the @dev->parent lock.
|
|
*/
|
|
void device_release_driver(struct device *dev)
|
|
{
|
|
/*
|
|
* If anyone calls device_release_driver() recursively from
|
|
* within their ->remove callback for the same device, they
|
|
* will deadlock right here.
|
|
*/
|
|
device_release_driver_internal(dev, NULL, NULL);
|
|
}
|
|
EXPORT_SYMBOL_GPL(device_release_driver);
|
|
|
|
/**
|
|
* device_driver_detach - detach driver from a specific device
|
|
* @dev: device to detach driver from
|
|
*
|
|
* Detach driver from device. Will acquire both @dev lock and @dev->parent
|
|
* lock if needed.
|
|
*/
|
|
void device_driver_detach(struct device *dev)
|
|
{
|
|
device_release_driver_internal(dev, NULL, dev->parent);
|
|
}
|
|
|
|
/**
|
|
* driver_detach - detach driver from all devices it controls.
|
|
* @drv: driver.
|
|
*/
|
|
void driver_detach(struct device_driver *drv)
|
|
{
|
|
struct device_private *dev_prv;
|
|
struct device *dev;
|
|
|
|
if (driver_allows_async_probing(drv))
|
|
async_synchronize_full();
|
|
|
|
for (;;) {
|
|
spin_lock(&drv->p->klist_devices.k_lock);
|
|
if (list_empty(&drv->p->klist_devices.k_list)) {
|
|
spin_unlock(&drv->p->klist_devices.k_lock);
|
|
break;
|
|
}
|
|
dev_prv = list_entry(drv->p->klist_devices.k_list.prev,
|
|
struct device_private,
|
|
knode_driver.n_node);
|
|
dev = dev_prv->device;
|
|
get_device(dev);
|
|
spin_unlock(&drv->p->klist_devices.k_lock);
|
|
device_release_driver_internal(dev, drv, dev->parent);
|
|
put_device(dev);
|
|
}
|
|
}
|