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authorDan Carpenter <dan.carpenter@oracle.com>2018-12-21 12:11:20 +0300
committerMark Brown <broonie@kernel.org>2019-01-03 16:32:52 +0000
commit28b698b7342c7d5300cfe217cd77ff7d2a55e03d (patch)
treed695309cc1d97634b1b737e14307b6c815fbe5fc /sound
parentfd270fca2001bcdac0658eb673c20920baeed86c (diff)
ASoC: pcm512x: Fix a double unlock in pcm512x_digital_mute()
We accidentally call mutex_unlock(&pcm512x->mutex); twice in a row. I re-wrote the error handling to use "goto unlock;" instead of returning directly. Hopefully, it makes the code a little simpler. Fixes: 3500f1c589e9 ("ASoC: pcm512x: Implement the digital_mute interface") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviwed-by: Dimitris Papavasiliou <dpapavas@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/pcm512x.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c
index 6cb1653be804..4cc24a5d5c31 100644
--- a/sound/soc/codecs/pcm512x.c
+++ b/sound/soc/codecs/pcm512x.c
@@ -1400,24 +1400,20 @@ static int pcm512x_digital_mute(struct snd_soc_dai *dai, int mute)
if (ret != 0) {
dev_err(component->dev,
"Failed to set digital mute: %d\n", ret);
- mutex_unlock(&pcm512x->mutex);
- return ret;
+ goto unlock;
}
regmap_read_poll_timeout(pcm512x->regmap,
PCM512x_ANALOG_MUTE_DET,
mute_det, (mute_det & 0x3) == 0,
200, 10000);
-
- mutex_unlock(&pcm512x->mutex);
} else {
pcm512x->mute &= ~0x1;
ret = pcm512x_update_mute(pcm512x);
if (ret != 0) {
dev_err(component->dev,
"Failed to update digital mute: %d\n", ret);
- mutex_unlock(&pcm512x->mutex);
- return ret;
+ goto unlock;
}
regmap_read_poll_timeout(pcm512x->regmap,
@@ -1428,9 +1424,10 @@ static int pcm512x_digital_mute(struct snd_soc_dai *dai, int mute)
200, 10000);
}
+unlock:
mutex_unlock(&pcm512x->mutex);
- return 0;
+ return ret;
}
static const struct snd_soc_dai_ops pcm512x_dai_ops = {