linux_dsm_epyc7002/sound/pci
Wang YanQing 2195b063f6 ALSA: HDA: Fix Oops caused by dereference NULL pointer
The interrupt handler azx_interrupt will call azx_update_rirb,
which may call snd_hda_queue_unsol_event, snd_hda_queue_unsol_event
will dereference chip->bus pointer.

The problem is we alloc chip->bus in azx_codec_create
which will be called after we enable IRQ and enable unsolicited
event in azx_probe.

This will cause Oops due dereference NULL pointer. I meet it, good luck:)

[Rearranged the NULL check before the tracepoint and added another
 NULL check of bus->workq -- tiwai]

Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-05-07 07:31:59 +02:00
..
ac97
ali5451 ALSA: ali5451: use mdelay instead of large udelay constants 2013-04-26 07:36:21 +02:00
asihpi ALSA: asihpi: add format support check in snd_card_asihpi_capture_formats 2013-04-29 13:37:33 +02:00
au88x0
aw2
ca0106
cs46xx
cs5535audio
ctxfi
echoaudio
emu10k1 ALSA: emu10k1: Fix dock firmware loading 2013-04-24 08:11:49 +02:00
hda ALSA: HDA: Fix Oops caused by dereference NULL pointer 2013-05-07 07:31:59 +02:00
ice1712
korg1212
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lx6464es
mixart
nm256
oxygen
pcxhr
riptide
rme9652
trident
vx222
ymfpci
ad1889.c
ad1889.h
ak4531_codec.c
als300.c
als4000.c
atiixp_modem.c
atiixp.c
azt3328.c
azt3328.h
bt87x.c
cmipci.c
cs4281.c
cs5530.c
ens1370.c
ens1371.c
es1938.c
es1968.c
fm801.c
intel8x0.c
intel8x0m.c
Kconfig
maestro3.c
Makefile
rme32.c
rme96.c
sis7019.c
sis7019.h
sonicvibes.c
via82xx_modem.c
via82xx.c