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authorBanajit Goswami <bgoswami@codeaurora.org>2017-07-15 06:15:05 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-11 15:49:29 (GMT)
commit650c763ea5ea68c136334f0e51ed2cd3938e09f5 (patch)
tree6f5dea39163be7ed1edfed55328af5d891360ca0 /sound
parent69f15fff03e886e306fb4d7218403d1cb04e4840 (diff)
downloadlinux-650c763ea5ea68c136334f0e51ed2cd3938e09f5.tar.xz
ASoC: do not close shared backend dailink
commit b1cd2e34c69a2f3988786af451b6e17967c293a0 upstream. Multiple frontend dailinks may be connected to a backend dailink at the same time. When one of frontend dailinks is closed, the associated backend dailink should not be closed if it is connected to other active frontend dailinks. Change ensures that backend dailink is closed only after all connected frontend dailinks are closed. Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org> Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org> Signed-off-by: Patrick Lai <plai@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-pcm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 21c3ef0..80088c9 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -181,6 +181,10 @@ int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,
dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n",
be->dai_link->name, event, dir);
+ if ((event == SND_SOC_DAPM_STREAM_STOP) &&
+ (be->dpcm[dir].users >= 1))
+ continue;
+
snd_soc_dapm_stream_event(be, dir, event);
}