[PATCH 6.4 268/737] ASoC: soc-compress: Fix deadlock in soc_compr_open_fe

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6.4-stable review patch.  If anyone has any objections, please let me know.

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

From: yixuanjiang <yixuanjiang@xxxxxxxxxx>

[ Upstream commit 2222214749a9969e09454b9ba7febfdfb09c1c8d ]

Modify the error handling flow by release lock.
The require mutex will keep holding if open fail.

Fixes: aa9ff6a4955f ("ASoC: soc-compress: Reposition and add pcm_mutex")
Signed-off-by: yixuanjiang <yixuanjiang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230619033127.2522477-1-yixuanjiang@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 sound/soc/soc-compress.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index d8715db5e415e..2117fd61cf8f3 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -194,6 +194,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
 out:
 	dpcm_path_put(&list);
+	snd_soc_dpcm_mutex_unlock(fe);
 be_err:
 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
 	snd_soc_card_mutex_unlock(fe->card);
-- 
2.40.1






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