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328f3c084f
android_kernel_xiaomi_sm8350/drivers
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Johan Hovold 328f3c084f regulator: core: fix deadlock on regulator enable 
commit cb3543cff90a4448ed560ac86c98033ad5fecda9 upstream.

When updating the operating mode as part of regulator enable, the caller
has already locked the regulator tree and drms_uA_update() must not try
to do the same in order not to trigger a deadlock.

The lock inversion is reported by lockdep as:

  ======================================================
  WARNING: possible circular locking dependency detected
  6.1.0-next-20221215 #142 Not tainted
  ------------------------------------------------------
  udevd/154 is trying to acquire lock:
  ffffc11f123d7e50 (regulator_list_mutex){+.+.}-{3:3}, at: regulator_lock_dependent+0x54/0x280

  but task is already holding lock:
  ffff80000e4c36e8 (regulator_ww_class_acquire){+.+.}-{0:0}, at: regulator_enable+0x34/0x80

  which lock already depends on the new lock.

  ...

   Possible unsafe locking scenario:

         CPU0                    CPU1
         ----                    ----
    lock(regulator_ww_class_acquire);
                                 lock(regulator_list_mutex);
                                 lock(regulator_ww_class_acquire);
    lock(regulator_list_mutex);

   *** DEADLOCK ***

just before probe of a Qualcomm UFS controller (occasionally) deadlocks
when enabling one of its regulators.

Fixes: 9243a195be ("regulator: core: Change voltage setting path")
Fixes: f8702f9e4a ("regulator: core: Use ww_mutex for regulators locking")
Cc: stable@vger.kernel.org      # 5.0
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221215104646.19818-1-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-18 11:41:41 +01:00
..
accessibility
acpi ACPICA: Fix error code path in acpi_ds_call_control_method() 2023-01-18 11:41:34 +01:00
amba
android binder: Gracefully handle BINDER_TYPE_FDA objects with num_fds=0 2022-12-08 11:23:01 +01:00
ata pata_ipx4xx_cf: Fix unsigned comparison with less than zero 2023-01-18 11:40:59 +01:00
atm
auxdisplay
base class: fix possible memory leak in __class_register() 2023-01-18 11:41:21 +01:00
bcma
block drbd: use after free in drbd_create_device() 2022-11-25 17:42:16 +01:00
bluetooth Bluetooth: hci_bcsp: don't call kfree_skb() under spin_lock_irqsave() 2023-01-18 11:41:16 +01:00
bus bus: sunxi-rsb: Support atomic transfers 2022-12-08 11:22:57 +01:00
cdrom
char ipmi: fix memleak when unload ipmi driver 2023-01-18 11:41:35 +01:00
clk clk: st: Fix memory leak in st_of_quadfs_setup() 2023-01-18 11:41:38 +01:00
clocksource clocksource/drivers/sh_cmt: Make sure channel clock supply is enabled 2023-01-18 11:40:56 +01:00
connector
counter counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update 2023-01-18 11:41:24 +01:00
cpufreq cpufreq: amd_freq_sensitivity: Add missing pci_dev_put() 2023-01-18 11:40:55 +01:00
cpuidle cpuidle: dt: Return the correct numbers of parsed idle states 2023-01-18 11:40:53 +01:00
crypto crypto: img-hash - Fix variable dereferenced before check 'hdev->req' 2023-01-18 11:41:21 +01:00
dax
dca
devfreq
dio drivers: dio: fix possible memory leak in dio_init() 2023-01-18 11:41:21 +01:00
dma dmaengine: at_hdmac: Check return code of dma_async_device_register 2022-11-25 17:42:10 +01:00
dma-buf
edac EDAC/i10nm: fix refcount leak in pci_get_dev_wrapper() 2023-01-18 11:40:55 +01:00
eisa
extcon
firewire
firmware firmware: coreboot: Register bus in module init 2022-12-08 11:23:00 +01:00
fpga
fsi fsi: core: Check error number after calling ida_simple_get 2022-10-26 13:22:41 +02:00
gnss
gpio gpio: amd8111: Fix PCI device reference count leak 2022-12-14 11:30:44 +01:00
gpu drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid() 2023-01-18 11:41:39 +01:00
greybus
hid HID: wacom: Ensure bootloader PID is usable in hidraw mode 2023-01-18 11:41:41 +01:00
hsi HSI: omap_ssi_core: Fix error handling in ssi_init() 2023-01-18 11:41:28 +01:00
hv Drivers: hv: vmbus: fix possible memory leak in vmbus_device_register() 2022-12-08 11:22:58 +01:00
hwmon hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() 2022-12-08 11:23:03 +01:00
hwspinlock
hwtracing
i2c i2c: ismt: Fix an out-of-bounds bug in ismt_access() 2023-01-18 11:41:26 +01:00
i3c
ide
idle intel_idle: Disable IBRS during long idle 2022-10-07 09:16:55 +02:00
iio iio: adc128s052: add proper .data members in adc128_of_match table 2023-01-18 11:41:41 +01:00
infiniband RDMA/siw: Fix pointer cast warning 2023-01-18 11:41:29 +01:00
input Input: elants_i2c - properly handle the reset GPIO when power is off 2023-01-18 11:41:03 +01:00
interconnect
iommu iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe() 2023-01-18 11:41:29 +01:00
ipack
irqchip irqchip: gic-pm: Use pm_runtime_resume_and_get() in gic_probe() 2023-01-18 11:40:54 +01:00
isdn mISDN: hfcmulti: don't call dev_kfree_skb/kfree_skb() under spin_lock_irqsave() 2023-01-18 11:41:32 +01:00
leds
lightnvm
macintosh macintosh/macio-adb: check the return value of ioremap() 2023-01-18 11:41:29 +01:00
mailbox mailbox: zynq-ipi: fix error handling while device_register() fails 2023-01-18 11:41:33 +01:00
mcb mcb: mcb-parse: fix error handing in chameleon_parse_gdd() 2023-01-18 11:41:25 +01:00
md md/raid1: stop mdx_raid1 thread when raid1 array run failed 2023-01-18 11:41:37 +01:00
media media: si470x: Fix use-after-free in si470x_int_in_callback() 2023-01-18 11:41:38 +01:00
memory memory: of: Fix refcount leak bug in of_get_ddr_timings() 2022-10-26 13:22:31 +02:00
memstick
message
mfd mfd: sm501: Add check for platform_driver_register() 2022-10-26 13:22:42 +02:00
misc cxl: Fix refcount leak in cxl_calc_capp_routing 2023-01-18 11:41:30 +01:00
mmc mmc: f-sdh30: Add quirks for broken timeout clock capability 2023-01-18 11:41:38 +01:00
mtd mtd: maps: pxa2xx-flash: fix memory leak in probe 2023-01-18 11:41:05 +01:00
mux
net ppp: associate skb with a device at tx 2023-01-18 11:41:37 +01:00
nfc nfc: pn533: Clear nfc_target before being used 2023-01-18 11:41:32 +01:00
ntb
nubus
nvdimm
nvme nvme initialize core quirks before calling nvme_init_subsystem 2022-12-14 11:30:46 +01:00
nvmem
of of: overlay: fix null pointer dereferencing in find_dup_cset_node_entry() and find_dup_cset_prop() 2023-01-18 11:41:14 +01:00
opp
oprofile
parisc parisc: Export iosapic_serial_irq() symbol for serial port driver 2022-11-10 17:57:56 +01:00
parport parport_pc: Avoid FIFO port location truncation 2022-11-25 17:42:14 +01:00
pci PCI: Check for alloc failure in pci_request_irq() 2023-01-18 11:41:18 +01:00
pcmcia
perf perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init() 2023-01-18 11:40:50 +01:00
phy phy: stm32: fix an error code in probe 2022-11-25 17:42:03 +01:00
pinctrl pinctrl: pinconf-generic: add missing of_node_put() 2023-01-18 11:41:06 +01:00
platform platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]() 2023-01-18 11:40:58 +01:00
pnp PNP: fix name memory leak in pnp_alloc_dev() 2023-01-18 11:40:54 +01:00
power power: supply: fix null pointer dereferencing in power_supply_get_battery_info 2023-01-18 11:41:28 +01:00
powercap powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue 2022-10-26 13:22:47 +02:00
pps
ps3
ptp
pwm pwm: sifive: Call pwm_sifive_update_clock() while mutex is held 2023-01-18 11:41:30 +01:00
rapidio rapidio: devices: fix missing put_device in mport_cdev_open 2023-01-18 11:40:59 +01:00
ras
regulator regulator: core: fix deadlock on regulator enable 2023-01-18 11:41:41 +01:00
remoteproc remoteproc: qcom_q6v5_pas: Fix missing of_node_put() in adsp_alloc_memory_region() 2023-01-18 11:41:31 +01:00
reset
rpmsg rpmsg: qcom: glink: replace strncpy() with strscpy_pad() 2022-10-15 07:54:38 +02:00
rtc rtc: mxc_v2: Add missing clk_disable_unprepare() 2023-01-18 11:41:32 +01:00
s390 s390/lcs: Fix return type of lcs_start_xmit() 2023-01-18 11:41:36 +01:00
sbus
scsi scsi: snic: Fix possible UAF in snic_tgt_create() 2023-01-18 11:41:20 +01:00
sfi
sh
siox siox: fix possible memory leak in siox_device_add() 2022-11-25 17:42:14 +01:00
slimbus slimbus: stream: correct presence rate frequencies 2022-11-25 17:42:17 +01:00
soc soc: ti: knav_qmss_queue: Fix PM disable depth imbalance in knav_queue_probe 2023-01-18 11:40:50 +01:00
soundwire
spi spi: spi-gpio: Don't set MOSI as an input if not 3WIRE mode 2023-01-18 11:41:12 +01:00
spmi spmi: pmic-arb: correct duplicate APID to PPID mapping logic 2022-10-26 13:22:43 +02:00
ssb
staging staging: rtl8192e: Fix potential use-after-free in rtllib_rx_Monitor() 2023-01-18 11:41:25 +01:00
target scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus() 2022-11-25 17:42:20 +01:00
tc
tee tee: optee: fix possible memory leak in optee_register_device() 2022-12-08 11:22:57 +01:00
thermal thermal: intel_powerclamp: Use first online CPU as control_cpu 2022-10-26 13:23:01 +02:00
thunderbolt
tty serial: sunsab: Fix error handling in sunsab_init() 2023-01-18 11:41:23 +01:00
uio uio: uio_dmem_genirq: Fix deadlock between irq config and handling 2023-01-18 11:41:22 +01:00
usb usb: dwc3: core: defer probe on ulpi_read_id timeout 2023-01-18 11:41:41 +01:00
vfio vfio: platform: Do not pass return buffer to ACPI _RST method 2023-01-18 11:41:22 +01:00
vhost vhost/vsock: Use kvmalloc/kvfree for larger packets. 2022-10-26 13:22:25 +02:00
video fbdev: uvesafb: Fixes an error handling path in uvesafb_probe() 2023-01-18 11:41:27 +01:00
virt
virtio
visorbus
vlynq
vme vme: Fix error not catched in fake_init() 2023-01-18 11:41:26 +01:00
w1
watchdog
xen xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource() 2023-01-18 11:40:57 +01:00
zorro
Kconfig
Makefile