Re: [alsa-devel] [PATCH v2 2/6] ALSA: compress: Add function to indicate the stream has gone bad

On Wed, 2016-04-06 at 11:21 +0100, Charles Keepax wrote:

+int snd_compr_stop_xrun(struct snd_compr_stream *stream) +{

• if (stream->runtime->state == SNDRV_PCM_STATE_XRUN)

• return 0;
  

• stream->runtime->state = SNDRV_PCM_STATE_XRUN;
• queue_delayed_work(system_power_efficient_wq, &stream

->xrun_work, 0);

why do we want to do this in workqueue and not stop the compress stream immediately.

Also if we do this, then why should pointer return error?