Patchwork [03/74] ASoC: pcm: allow backend hardware to be freed in pause state

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Submitter Herton Ronaldo Krzesinski
Date Jan. 24, 2013, 3:26 a.m.
Message ID <>
Download mbox | patch
Permalink /patch/215115/
State New
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Herton Ronaldo Krzesinski - Jan. 24, 2013, 3:26 a.m. -stable review patch.  If anyone has any objections, please let me know.


From: Patrick Lai <>

commit 08b27848da620f206a8b6d80f26184485dd7aa40 upstream.

When front-end PCM session is in paused state, back-end
PCM session will be put in paused state as well if given
front-end PCM session is the only client of given back-end.
Then, application closes front-end PCM session, DPCM
framework will not allow back-end enters HW_FREE state
so back-end will never get shutdown completely.

Signed-off-by: Patrick Lai <>
Acked-by: Liam Girdwood <>
Signed-off-by: Mark Brown <>
Signed-off-by: Herton Ronaldo Krzesinski <>
 sound/soc/soc-pcm.c |    1 +
 1 file changed, 1 insertion(+)


diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 48fd15b..6f2bad0 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1240,6 +1240,7 @@  static int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream)
 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
 		    (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))