[PATCH 0/1] ASoC: soc-compress: lock pcm_mutex to resolve lockdep error

[이경택]

Hi, Mark

I resend the patch and add recipient Vinod as your comment.
Thank you.


I'd like to send a patch to fix a problem using soc-compress with DPCM.
soc_compr_open_fe() and soc_compr_free_fe() call snd_soc_runtime_activate()
and snd_soc_runtime_deactivate() but don't lock card->pcm_mutex.
It can cause lockdep error, because snd_soc_runtime_activate/deactivate()
checks whether pcm_mutex is held using lockdep_assert_held().
I'd like to send a patch which adds mutex_lock/unlock() before and after of
the snd_soc_runtime_activate/deactivate() call.
If there is anything should be changed in my patch or email, please let me
know it.
I'll really appreciate it.

Lee

Gyeongtaek Lee (1):
  ASoC: soc-compress: lock pcm_mutex to resolve lockdep error

 sound/soc/soc-compress.c | 4 ++++
 1 file changed, 4 insertions(+)


base-commit: 76ccd234269bd05debdbc12c96eafe62dd9a6180
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2.21.0