Sjur Brændeland 0b2d4e113b virtio_console: Don't access uninitialized data. ... commit aded024a12 upstream. Don't access uninitialized work-queue when removing device. The work queue is initialized only if the device multi-queue. So don't call cancel_work unless this is a multi-queue device. This fixes the following panic: Kernel panic - not syncing: BUG! Call Trace: 62031b28: [<6026085d>] panic+0x16b/0x2d3 62031b30: [<6004ef5e>] flush_work+0x0/0x1d7 62031b60: [<602606f2>] panic+0x0/0x2d3 62031b68: [<600333b0>] memcpy+0x0/0x140 62031b80: [<6002d58a>] unblock_signals+0x0/0x84 62031ba0: [<602609c5>] printk+0x0/0xa0 62031bd8: [<60264e51>] __mutex_unlock_slowpath+0x13d/0x148 62031c10: [<6004ef5e>] flush_work+0x0/0x1d7 62031c18: [<60050234>] try_to_grab_pending+0x0/0x17e 62031c38: [<6004e984>] get_work_gcwq+0x71/0x8f 62031c48: [<60050539>] __cancel_work_timer+0x5b/0x115 62031c78: [<628acc85>] unplug_port+0x0/0x191 [virtio_console] 62031c98: [<6005061c>] cancel_work_sync+0x12/0x14 62031ca8: [<628ace96>] virtcons_remove+0x80/0x15c [virtio_console] 62031ce8: [<628191de>] virtio_dev_remove+0x1e/0x7e [virtio] 62031d08: [<601cf242>] __device_release_driver+0x75/0xe4 62031d28: [<601cf2dd>] device_release_driver+0x2c/0x40 62031d48: [<601ce0dd>] driver_unbind+0x7d/0xc6 62031d88: [<601cd5d9>] drv_attr_store+0x27/0x29 62031d98: [<60115f61>] sysfs_write_file+0x100/0x14d 62031df8: [<600b737d>] vfs_write+0xcb/0x184 62031e08: [<600b58b8>] filp_close+0x88/0x94 62031e38: [<600b7686>] sys_write+0x59/0x88 62031e88: [<6001ced1>] handle_syscall+0x5d/0x80 62031ea8: [<60030a74>] userspace+0x405/0x531 62031f08: [<600d32cc>] sys_dup+0x0/0x5e 62031f28: [<601b11d6>] strcpy+0x0/0x18 62031f38: [<600be46c>] do_execve+0x10/0x12 62031f48: [<600184c7>] run_init_process+0x43/0x45 62031fd8: [<60019a91>] new_thread_handler+0xba/0xbc Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-02-14 10:48:51 -08:00
..
agp	char/agp: add another Ironlake host bridge	2012-06-17 11:21:22 -07:00
hw_random	hwrng: atmel-rng - fix data valid check	2012-06-22 11:37:15 -07:00
ipmi	Merge branch 'akpm' (Andrew's patch-bomb)	2012-03-28 17:19:28 -07:00
mwave	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
pcmcia	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
tpm	tpm: Propagate error from tpm_transmit to fix a timeout hang	2012-10-21 09:28:01 -07:00
xilinx_hwicap	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
apm-emulation.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm	2012-04-05 17:34:30 -07:00
applicom.c	drivers/char/applicom.c: fix information leak to userland	2010-10-27 18:03:14 -07:00
applicom.h
bfin-otp.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
bsr.c	treewide: Convert uses of struct resource to resource_size(ptr)	2011-06-10 14:55:36 +02:00
ds1302.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ds1620.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
dsp56k.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
dtlk.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
efirtc.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
generic_nvram.c	drivers: fix up various ->llseek() implementations	2011-07-20 20:47:58 -04:00
genrtc.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
hangcheck-timer.c	Input: sysrq - drop tty argument form handle_sysrq()	2010-08-21 00:34:45 -07:00
hpet.c	printk(): add KERN_CONT where needed in hpet and vt code	2012-04-09 10:30:39 -07:00
i8k.c	module_param: make bool parameters really bool (drivers & misc)	2012-01-13 09:32:20 +10:30
Kconfig	tty: delete briq_panel.c driver	2012-03-08 10:45:55 -08:00
lp.c	Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-03-29 18:12:23 -07:00
Makefile	tty: delete briq_panel.c driver	2012-03-08 10:45:55 -08:00
mbcs.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
mbcs.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
mem.c	switch device_get_devnode() and ->devnode() to umode_t *	2012-01-03 22:54:55 -05:00
misc.c	switch device_get_devnode() and ->devnode() to umode_t *	2012-01-03 22:54:55 -05:00
mmtimer.c	posix-timers: Cleanup namespace	2011-02-02 15:28:19 +01:00
msm_smd_pkt.c	drivers/char/msm_smd_pkt.c: don't use IS_ERR()	2011-08-25 16:25:33 -07:00
mspec.c	Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts	2012-08-15 08:10:04 -07:00
nsc_gpio.c
nvram.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
nwbutton.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
nwbutton.h
nwflash.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
pc8736x_gpio.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
ppdev.c	drivers/char/ppdev.c: put gotten port value	2011-05-26 17:12:37 -07:00
ps3flash.c	drivers/char: Add module.h to those who were using it implicitly	2011-10-31 19:31:40 -04:00
ramoops.c	char/ramoops: included linux/err.h twice	2012-02-24 14:16:43 -08:00
random.c	random: mix in architectural randomness in extract_buf()	2012-08-15 08:10:30 -07:00
raw.c	switch device_get_devnode() and ->devnode() to umode_t *	2012-01-03 22:54:55 -05:00
rtc.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
scx200_gpio.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
snsc_event.c
snsc.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
snsc.h	headers: kobject.h redux	2011-01-10 08:51:44 -08:00
sonypi.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
tb0219.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
tile-srom.c	tile-srom.c driver: minor code cleanup	2012-04-02 12:14:10 -04:00
tlclk.c	char: Fix typo in tlclk.c	2012-02-09 23:09:37 +01:00
toshiba.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
ttyprintk.c	TTY: ttyprintk, don't touch behind tty->write_buf	2012-10-07 08:32:24 -07:00
uv_mmtimer.c	BKL: remove extraneous #include <smp_lock.h>	2010-11-17 08:59:32 -08:00
virtio_console.c	virtio_console: Don't access uninitialized data.	2013-02-14 10:48:51 -08:00