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    Subject[PATCH 3.16 025/294] ASoC: do not close shared backend dailink
    3.16.50-rc1 review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Banajit Goswami <bgoswami@codeaurora.org>

    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: Ben Hutchings <ben@decadent.org.uk>
    ---
    sound/soc/soc-pcm.c | 4 ++++
    1 file changed, 4 insertions(+)

    --- a/sound/soc/soc-pcm.c
    +++ b/sound/soc/soc-pcm.c
    @@ -150,6 +150,10 @@ int dpcm_dapm_stream_event(struct snd_so
    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);
    }

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