Alan Cox aef29bc260 tty: Fix the leak in tty_ldisc_release ... Currently we reinit the ldisc on final tty close which is what the old code did to ensure that if the device retained its termios settings then it had the right ldisc. tty_ldisc_reinit does that but also leaves us with the reset ldisc reference which is then leaked. At this point we know the port will be recycled so we can kill the ldisc off completely rather than try and add another ldisc free up when the kref count hits zero. At this point it is safe to keep the ldisc closed as tty_ldisc waiting methods are only used from the user side, and as the final close we are the last such reference. Interrupt/driver side methods will always use the non wait version and get back a NULL. Found with kmemleak and investigated/identified by Catalin Marinas. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-06-29 09:33:26 -07:00
..
agp	Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2009-06-20 10:15:30 -07:00
hw_random	MIPS: hwrng: Add TX4939 RNG driver	2009-06-17 11:06:27 +01:00
ip2	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
ipmi	ipmi: remove driver_data direct access of struct device	2009-06-15 21:30:27 -07:00
mwave	mwave: struct device - replace bus_id with dev_name(), dev_set_name()	2009-01-06 10:44:38 -08:00
pcmcia	pcmcia/cm4000: fix lock imbalance	2009-06-22 11:32:24 -07:00
rio	rio: addition has higher precedence than ?:	2009-04-06 14:36:43 -07:00
tpm	TPM: get_event_name stack corruption	2009-05-20 08:30:05 +10:00
xilinx_hwicap
.gitignore
amiserial.c	trivial: typo (en|dis|avail|remove)bale -> (en|dis|avail|remove)able	2009-06-12 18:01:45 +02:00
apm-emulation.c
applicom.c	applicom: Auto-load applicom module when device opened.	2009-04-06 14:36:30 -07:00
applicom.h
bfin_jtag_comm.c	bfin_jtag_comm: clean up printk usage	2009-06-22 11:32:23 -07:00
bfin-otp.c
briq_panel.c
bsr.c	powerpc/BSR: Fix BSR to allow mmap of small BSR on 64k kernel	2009-06-26 14:37:26 +10:00
cd1865.h
ChangeLog
consolemap.c	consolemap: indentation & braces disagree - reindent	2009-01-06 15:59:30 -08:00
cp437.uni
cs5535_gpio.c
cyclades.c	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
defkeymap.c_shipped
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1302.c
ds1620.c
dsp56k.c
dtlk.c	dtlk: off by one in {read,write}_tts()	2009-06-19 16:46:06 -07:00
efirtc.c
epca.c	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
epca.h
epcaconfig.h
esp.c	esp: fix section mismatch warning	2009-04-07 08:31:03 -07:00
generic_nvram.c
generic_serial.c	tty: Remove some pointless casts	2009-01-02 10:19:40 -08:00
genrtc.c
hangcheck-timer.c
hpet.c	irq: change ACPI GSI APIs to also take a device argument	2009-04-28 12:21:17 +02:00
hvc_beat.c	powerpc/cell: Use correct types in beat files	2009-01-08 16:25:16 +11:00
hvc_console.c	hvc_console: Remove tty->low_latency	2009-01-16 16:15:16 +11:00
hvc_console.h
hvc_irq.c	hvc_console: Call free_irq() only if request_irq() was successful	2009-01-13 14:48:01 +11:00
hvc_iseries.c	drivers/hvc: Add missing __devexit_p()	2009-06-16 14:15:44 +10:00
hvc_iucv.c	[S390] pm: hvc_iucv power management callbacks	2009-06-16 10:31:19 +02:00
hvc_rtas.c
hvc_udbg.c
hvc_vio.c	drivers/hvc: Add missing __devexit_p()	2009-06-16 14:15:44 +10:00
hvc_xen.c
hvcs.c	Merge commit 'origin/master' into next	2009-06-18 11:16:55 +10:00
hvsi.c	hvc_console: Remove tty->low_latency on pseries backends	2009-03-11 10:44:26 +11:00
i8k.c	i8k: Add Dell Vostro systems	2009-01-02 10:28:32 -08:00
isicom.c	Char: isicom: fix build warning	2009-06-18 13:03:54 -07:00
istallion.c	istallion: add missing __devexit marking	2009-06-19 16:46:06 -07:00
Kconfig	drivers/char/rtc: disable legacy RTC driver on Blackfin systems	2009-06-18 13:03:43 -07:00
keyboard.c	Input: keyboard - remove warning about raw mode not supported	2009-04-20 21:21:24 -07:00
lp.c
Makefile	tty: bfin_jtag_comm: emulate a TTY over the Blackfin EMUDAT/JTAG interface	2009-06-11 08:51:06 -07:00
mbcs.c
mbcs.h
mem.c	drivers/char/mem.c: memory_open() cleanup: lookup minor device number from devlist	2009-06-18 13:03:54 -07:00
misc.c	Driver Core: misc: add nodename support for misc devices.	2009-06-15 21:30:25 -07:00
mmtimer.c
moxa.c	Revert "char: moxa, prevent opening unavailable ports"	2009-06-22 11:24:43 -07:00
moxa.h
mspec.c
mxser.c	Remove low_latency flag setting from nozomi and mxser drivers	2009-06-24 09:55:50 -07:00
mxser.h
n_hdlc.c	tty: n_hdlc add buffer flushing	2009-06-22 11:32:24 -07:00
n_r3964.c	n_r3964: fix lock imbalance	2009-06-22 11:32:23 -07:00
n_tty.c	tty: simplify buffer allocator cleanups	2009-06-11 08:51:02 -07:00
nozomi.c	Remove low_latency flag setting from nozomi and mxser drivers	2009-06-24 09:55:50 -07:00
nsc_gpio.c
nvram.c
nwbutton.c
nwbutton.h
nwflash.c
pc8736x_gpio.c
ppdev.c	ppdev: reduce kernel log spam	2009-06-18 13:03:54 -07:00
ps3flash.c	ps3flash: Always read chunks of 256 KiB, and cache them	2009-06-15 16:47:27 +10:00
pty.c	pty: Narrow the race on ldisc locking	2009-06-16 12:01:16 -07:00
random.c	Avoid ICE in get_random_int() with gcc-3.4.5	2009-05-19 11:25:35 -07:00
raw.c	Driver Core: raw: add nodename for raw devices	2009-06-15 21:30:26 -07:00
riscom8_reg.h
riscom8.c	riscom8: Auto-load riscom8 module when device opened.	2009-04-06 14:36:31 -07:00
riscom8.h
rocket_int.h	tty: rocketport uses different port flags to everyone else	2009-01-02 10:19:39 -08:00
rocket.c	rocket: fix test_bit parameters	2009-06-11 08:50:58 -07:00
rocket.h	tty: rocketport uses different port flags to everyone else	2009-01-02 10:19:39 -08:00
rtc.c	RTC: Remove the BKL.	2009-01-08 16:44:03 -07:00
scc.h	m68k: atari - Rename "mfp" to "st_mfp"	2009-02-22 09:23:02 -08:00
scx200_gpio.c
selection.c	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
ser_a2232.c	m68k: ser_a2232 - Kill warn_unused_result warnings	2009-01-12 20:56:39 +01:00
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c	tty: Remove some pointless casts	2009-01-02 10:19:40 -08:00
snsc_event.c
snsc.c
snsc.h
sonypi.c	Rationalize fasync return values	2009-03-16 08:34:35 -06:00
specialix_io8.h
specialix.c	specialix: Auto-load specialix module when device opened.	2009-04-06 14:36:31 -07:00
stallion.c	tty: Add carrier processing on close to the tty_port core	2009-06-11 08:50:56 -07:00
sx.c	sx.c: avoid referencing freed memory if copy_from_user() fails	2009-02-20 17:57:49 -08:00
sx.h
sxboards.h
sxwindow.h
synclink_gt.c	synclink_gt: fix transmit race and timeout	2009-06-24 09:55:50 -07:00
synclink.c	tty: Add carrier processing on close to the tty_port core	2009-06-11 08:50:56 -07:00
synclinkmp.c	tty: Add carrier processing on close to the tty_port core	2009-06-11 08:50:56 -07:00
sysrq.c	kexec: sysrq: simplify sysrq-c handler	2009-06-18 13:03:59 -07:00
tb0219.c
tlclk.c
toshiba.c
tty_audit.c	tty: remove buffer special casing	2009-06-11 08:51:02 -07:00
tty_buffer.c
tty_io.c	tty: fix sanity check	2009-06-16 12:01:16 -07:00
tty_ioctl.c	tty: fix unused warning when TCGETX is not defined	2009-06-16 12:01:16 -07:00
tty_ldisc.c	tty: Fix the leak in tty_ldisc_release	2009-06-29 09:33:26 -07:00
tty_port.c	tty: fix tty_port_block_til_ready waiting	2009-06-24 09:55:50 -07:00
vc_screen.c	vcs: hook sysfs devices into object lifetime instead of "binding"	2009-03-24 16:38:26 -07:00
viotape.c	tape: beyond ARRAY_SIZE of viocd_diskinfo	2009-06-02 10:32:34 +10:00
virtio_console.c	virtio: find_vqs/del_vqs virtio operations	2009-06-12 22:16:36 +09:30
vme_scc.c	m68k: vme_scc - Kill warn_unused_result warnings	2009-01-12 20:56:38 +01:00
vr41xx_giu.c
vt_ioctl.c	vt_ioctl: fix lock imbalance	2009-06-22 11:32:24 -07:00
vt.c	console: make blank timeout value a boot option	2009-06-16 19:47:52 -07:00