In case, one BE is used by two FE1/FE2 FE1--->BE--> | FE2----] when FE1/FE2 call dpcm_be_dai_hw_free() together the BE users will be 2 (> 1), hence cannot be hw_free the be state will leave at, ex. SND_SOC_DPCM_STATE_STOP
later FE1/FE2 call dpcm_be_dai_shutdown(), will be skip due to wrong state. leaving the BE not being hw_free and shutdown.
The BE dai will be hw_free later when calling dpcm_be_dai_shutdown() if still in invalid state.
Signed-off-by: KaiChieh Chuang kaichieh.chuang@mediatek.com --- sound/soc/soc-pcm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 87c9af2..ffdbbd9 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1866,8 +1866,10 @@ int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) continue;
if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && - (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) - continue; + (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) { + soc_pcm_hw_free(be_substream); + be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; + }
dev_dbg(be->dev, "ASoC: close BE %s\n", be->dai_link->name);