[alsa-devel] Issue in alsa when dma complete race with pcm release

[Shengjiu Wang]

Hi alsa-devel

   There maybe a issue in ALSA when dma complete race with snd_pcm_release.
The pcm release and dma complete are in different thread. There is occasion
that dmaengine_pcm_dma_complete() is called too late, some memory has been
freed, the prtd is null. Then there is kernel dump.

   Is there any solution for this issue? Thanks.

Best regards
wang shengjiu