linux/sound
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 ALSA: ac97: (cosmetic) align argument names 2020-09-03 09:27:27 +02:00
aoa ALSA: aoa: i2sbus: use DECLARE_COMPLETION_ONSTACK() macro 2020-09-03 09:26:52 +02:00
arm
atmel ALSA: atmel: ac97: clarify operator precedence 2020-09-03 09:27:34 +02:00
core ALSA: ctl: fix error path at adding user-defined element set 2020-11-13 11:33:55 +01:00
drivers ALSA: portman2x4: fix repeated word 'if' 2020-10-06 18:08:19 +02:00
firewire ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() 2020-11-13 18:37:22 +01:00
hda ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() 2020-11-03 14:11:38 +01:00
i2c
isa sound fixes for 5.9-rc2 2020-08-21 10:07:54 -07:00
mips hal2: convert to dma_alloc_noncoherent 2020-09-25 06:20:44 +02:00
oss ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
parisc
pci ALSA: mixart: Fix mutex deadlock 2020-11-19 18:26:30 +01:00
pcmcia ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
ppc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sh
soc ASoC: Fixes for v5.10 2020-11-05 18:19:32 +01:00
sparc ALSA: sparc: dbri: fix repeated word 'the' 2020-10-17 09:58:35 +02:00
spi
synth
usb ALSA: usb-audio: Add delay quirk for all Logitech USB devices 2020-11-17 13:47:09 +01:00
x86 ALSA: hda: use consistent HDAudio spelling in comments/docs 2020-09-02 19:31:32 +02:00
xen ALSA: xen: Remove superfluous fall through comments 2020-07-09 19:10:37 +02:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c