On Wed, 7 Apr 2021 13:14:04 +0900, Gyeongtaek Lee wrote:
If panic_on_warn=1 is added in bootargs and compress offload playback with DPCM is started, kernel panic would be occurred because rtd->card->pcm_mutex isn't held in soc_compr_open_fe() and soc_compr_free_fe() and it generates lockdep warning in the following code.
void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd, int stream, int action) { struct snd_soc_dai *dai; int i;
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: soc-compress: lock pcm_mutex to resolve lockdep error commit: 45475bf60cc1d42da229a0aa757180c88bab8d22
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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Thanks, Mark