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63 lines
1.8 KiB
Diff
63 lines
1.8 KiB
Diff
From 26001d54a7f803258b161f25f457ce11523695d7 Mon Sep 17 00:00:00 2001
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From: Dan Carpenter <dan.carpenter@oracle.com>
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Date: Fri, 21 Dec 2018 12:11:20 +0300
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Subject: [PATCH] ASoC: pcm512x: Fix a double unlock in
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pcm512x_digital_mute()
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[ Upstream commit 28b698b7342c7d5300cfe217cd77ff7d2a55e03d ]
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We accidentally call mutex_unlock(&pcm512x->mutex); twice in a row.
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I re-wrote the error handling to use "goto unlock;" instead of returning
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directly. Hopefully, it makes the code a little simpler.
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Fixes: 3500f1c589e9 ("ASoC: pcm512x: Implement the digital_mute interface")
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Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
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Reviwed-by: Dimitris Papavasiliou <dpapavas@gmail.com>
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Signed-off-by: Mark Brown <broonie@kernel.org>
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---
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sound/soc/codecs/pcm512x.c | 11 ++++-------
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1 file changed, 4 insertions(+), 7 deletions(-)
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--- a/sound/soc/codecs/pcm512x.c
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+++ b/sound/soc/codecs/pcm512x.c
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@@ -1404,24 +1404,20 @@ static int pcm512x_digital_mute(struct s
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if (ret != 0) {
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dev_err(component->dev,
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"Failed to set digital mute: %d\n", ret);
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- mutex_unlock(&pcm512x->mutex);
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- return ret;
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+ goto unlock;
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}
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regmap_read_poll_timeout(pcm512x->regmap,
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PCM512x_ANALOG_MUTE_DET,
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mute_det, (mute_det & 0x3) == 0,
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200, 10000);
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-
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- mutex_unlock(&pcm512x->mutex);
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} else {
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pcm512x->mute &= ~0x1;
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ret = pcm512x_update_mute(pcm512x);
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if (ret != 0) {
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dev_err(component->dev,
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"Failed to update digital mute: %d\n", ret);
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- mutex_unlock(&pcm512x->mutex);
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- return ret;
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+ goto unlock;
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}
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regmap_read_poll_timeout(pcm512x->regmap,
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@@ -1432,9 +1428,10 @@ static int pcm512x_digital_mute(struct s
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200, 10000);
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}
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+unlock:
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mutex_unlock(&pcm512x->mutex);
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- return 0;
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+ return ret;
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}
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static int pcm512x_set_tdm_slot(struct snd_soc_dai *dai,
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