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ASoC: do not close shared backend dailink 

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>
Cc: stable@vger.kernel.org
hifive-unleashed-5.1
Banajit Goswami 2017-07-14 23:15:05 -07:00 committed by Mark Brown
parent 5771a8c088
commit b1cd2e34c6
1 changed files with 4 additions and 0 deletions
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4
sound/soc/soc-pcm.c
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@ -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);
}