ASoC: pcm: allow backend hardware to be freed in pause state

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 <plai@codeaurora.org>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d7711fce119b7b949bc521759b2f13e177dd657d..cf191e6aebbe1d1bfeb9dd511d0fe9b5e5bd3bbd 100644 (file)
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1243,6 +1243,7 @@ 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))
                        continue;