Re: [PATCH v3 6/9] ASoC: qcom: Add QAIF PCM operations

[Harendra Gautam]

On Mon, Aug 24, 2026 at 2:55 PM Markus Elfring <Markus.Elfring@xxxxxx> wrote:
>
> …
> > +++ b/sound/soc/qcom/qaif-platform.c
> > @@ -0,0 +1,544 @@
> …
> > +static int qaif_platform_pcmops_close(struct snd_soc_component *component,
> > +                                   struct snd_pcm_substream *substream)
> > +{
> …
> > +     mutex_lock(&drvdata->stream_lock);
> > +     if (v->free_stream_dma_idx)
> > +             v->free_stream_dma_idx(drvdata, data->stream_dma_idx, dai_id);
> > +     mutex_unlock(&drvdata->stream_lock);
> …
>
> Under which circumstances would you become interested to apply a statement
> like “guard(mutex)(&drvdata->stream_lock);”?
> https://elixir.bootlin.com/linux/v7.2/source/include/linux/mutex.h#L253
>
> Regards,
> Markus
Thanks for the pointer. I believe guard() can be used across all
stream_lock. I Will address it in the next version.
-Harendra