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ALSA: jack: Access input_dev under mutex
authorAmadeusz Sławiński <[email protected]>
Tue, 12 Apr 2022 09:16:28 +0000 (11:16 +0200)
committerTakashi Iwai <[email protected]>
Tue, 12 Apr 2022 10:19:05 +0000 (12:19 +0200)
commit1b6a6fc5280e97559287b61eade2d4b363e836f2
tree3654c5b0592641ee7e1dc78b9c71be650dc08d95tree | snapshot
parent8f06bd1f89ca8b58dd8c4447b0eeae6ebe63ca0ecommit | diff
ALSA: jack: Access input_dev under mutex

It is possible when using ASoC that input_dev is unregistered while
calling snd_jack_report, which causes NULL pointer dereference.
In order to prevent this serialize access to input_dev using mutex lock.

Signed-off-by: Amadeusz Sławiński <[email protected]>
Reviewed-by: Cezary Rojewski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
include/sound/jack.h diff | blob | blame | history
sound/core/jack.c diff | blob | blame | history
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