From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shengjiu Wang <shengjiu.wang@freescale.com>
Subject: Issue in alsa when dma complete race with pcm release
Date: Fri, 3 Jul 2015 16:25:31 +0800
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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