WSL2-Linux-Kernel/sound/pci
Takashi Iwai d21b96c8ed ALSA: mixart: Fix mutex deadlock
The code change for switching to non-atomic mode brought the
unexpected mutex deadlock in get_msg().  It converted the spinlock
with the existing mutex, but there were calls with the already holding
the mutex.  Since the only place that needs the extra lock is the code
path from snd_mixart_send_msg(), remove the mutex lock in get_msg()
and apply in the caller side for fixing the mutex deadlock.

Fixes: 8d3a8b5cb5 ("ALSA: mixart: Use nonatomic PCM ops")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201119121440.18945-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-11-19 18:26:30 +01:00
..
ac97
ali5451
asihpi
au88x0
aw2
ca0106
cs46xx
cs5535audio
ctxfi
echoaudio
emu10k1
hda ALSA: hda/ca0132: Fix compile warning without PCI 2020-11-19 13:04:43 +01:00
ice1712
korg1212
lola
lx6464es
mixart ALSA: mixart: Fix mutex deadlock 2020-11-19 18:26:30 +01:00
nm256
oxygen
pcxhr
riptide
rme9652
trident
vx222
ymfpci
Kconfig
Makefile
ad1889.c
ad1889.h
ak4531_codec.c
als300.c
als4000.c
atiixp.c
atiixp_modem.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
maestro3.c
rme32.c
rme96.c
sis7019.c
sis7019.h
sonicvibes.c
via82xx.c
via82xx_modem.c