Sjur Brændeland aded024a12 virtio_console: Don't access uninitialized data. ... 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> Cc: stable@kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>		2013-02-07 11:37:37 +10:30
..
agp	Drivers: char: remove __dev* attributes.	2013-01-03 15:57:15 -08:00
hw_random	Drivers: char: remove __dev* attributes.	2013-01-03 15:57:15 -08:00
ipmi	Drivers: char: remove __dev* attributes.	2013-01-03 15:57:15 -08:00
mwave	8250: three way resolve of the 8250 diffs	2012-07-17 09:11:50 -07:00
pcmcia	TTY: call tty_port_destroy in the rest of drivers	2012-11-15 17:20:58 -08:00
tpm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2012-12-16 15:40:50 -08:00
xilinx_hwicap	char: remove use of __devexit	2012-11-21 12:55:19 -08:00
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
applicom.h
bfin-otp.c
bsr.c	powerpc/BSR: cleanup the error path of bsr_init	2012-07-17 10:27:38 -07:00
ds1302.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ds1620.c	ARM: footbridge: nw_gpio_lock is raw_spin_lock	2012-10-07 10:33:12 +02:00
dsp56k.c
dtlk.c
efirtc.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
generic_nvram.c
genrtc.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
hangcheck-timer.c
hpet.c	drivers/char: for hpet, add count checking, and ~0UL instead of -1	2012-11-26 16:16:35 -08:00
i8k.c	module_param: make bool parameters really bool (drivers & misc)	2012-01-13 09:32:20 +10:30
Kconfig	char/misc: remove CONFIG_EXPERIMENTAL dependencies	2012-09-18 16:14:53 +01:00
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	IPMI: Change link order	2012-10-16 18:07:12 -07:00
mbcs.c	char: remove use of __devinitconst	2012-11-21 12:55:19 -08:00
mbcs.h
mem.c	/dev/mem: use phys_addr_t for physical addresses	2012-10-24 15:32:50 -07:00
misc.c	switch device_get_devnode() and ->devnode() to umode_t *	2012-01-03 22:54:55 -05:00
mmtimer.c	drivers/char/mmtimer.c: Remove useless kfree	2012-09-26 13:20:40 -07:00
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	mm: kill vma flag VM_RESERVED and mm->reserved_vm counter	2012-10-09 16:22:19 +09:00
nsc_gpio.c
nvram.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
nwbutton.c	drivers/char: removes unnecessary semicolon	2012-09-26 13:20:39 -07:00
nwbutton.h
nwflash.c	Merge branch 'late/fixes' into fixes	2012-10-07 07:22:32 -07:00
pc8736x_gpio.c	pc8736x_gpio: use platform_device_unregister in pc8736x_gpio_cleanup()	2012-10-24 15:52:29 -07:00
ppdev.c	Merge branch 'master' into for-next	2012-10-28 19:29:19 +01:00
ps3flash.c	char: remove use of __devinit	2012-11-21 12:55:19 -08:00
random.c	random: prime last_data value per fips requirements	2012-11-08 07:19:18 -05:00
raw.c	blockdev: remove bd_block_size_semaphore again	2012-11-29 10:52:19 -08:00
rtc.c	drivers/char: removes unnecessary semicolon	2012-09-26 13:20:39 -07:00
scx200_gpio.c
snsc_event.c
snsc.c
snsc.h
sonypi.c	char: remove use of __devexit	2012-11-21 12:55:19 -08:00
tb0219.c	char: remove use of __devexit	2012-11-21 12:55:19 -08:00
tile-srom.c	tile-srom.c driver: minor code cleanup	2012-04-02 12:14:10 -04:00
tlclk.c	drivers/char/tlclk.c: fix error return code	2012-08-16 10:09:15 -07:00
toshiba.c
ttyprintk.c	TTY: call tty_port_destroy in the rest of drivers	2012-11-15 17:20:58 -08:00
uv_mmtimer.c
virtio_console.c	virtio_console: Don't access uninitialized data.	2013-02-07 11:37:37 +10:30