Patch "ASoC: dpcm: fix the BE state on hw_free" has been added to the 3.14-stable tree

This is a note to let you know that I've just added the patch titled

ASoC: dpcm: fix the BE state on hw_free

to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
asoc-dpcm-fix-the-be-state-on-hw_free.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Vinod Koul <[email protected]>
Date: Mon, 1 Feb 2016 22:26:40 +0530
Subject: ASoC: dpcm: fix the BE state on hw_free

From: Vinod Koul <[email protected]>

commit 5e82d2be6ee53275c72e964507518d7964c82753 upstream.

While performing hw_free, DPCM checks the BE state but leaves out the suspend state. The suspend state needs to be checked as well, as we might be suspended and then usermode closes rather than resuming the audio stream.

This was found by a stress testing of system with playback in loop and killed after few seconds running in background and second script running suspend-resume test in loop

---
 sound/soc/soc-pcm.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -1404,7 +1404,8 @@ int dpcm_be_dai_hw_free(struct snd_soc_p
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) &&
-		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
 			continue;
 
 		dev_dbg(be->dev, "ASoC: hw_free BE %s\n",

Patches currently in stable-queue which might be from [email protected] are

queue-3.14/asoc-dpcm-fix-the-be-state-on-hw_free.patch