linux-kernel - [PATCH 5.12 091/292] ASoC: soc-pcm: fix the return value in dpcm_apply

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Date:   Mon, 19 Jul 2021 16:52:33 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
        Mark Brown <broonie@...nel.org>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 091/292] ASoC: soc-pcm: fix the return value in dpcm_apply_symmetry()

From: Jaroslav Kysela <perex@...ex.cz>

[ Upstream commit 12ffd726824a2f52486f72338b6fd3244b512959 ]

In case, where the loops are not executed for a reason, the uninitialized
variable 'err' is returned to the caller. Make code fully predictible
and assign zero in the declaration.

Signed-off-by: Jaroslav Kysela <perex@...ex.cz>
Cc: Mark Brown <broonie@...nel.org>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Link: https://lore.kernel.org/r/20210614071746.1787072-1-perex@perex.cz
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/soc-pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 14d85ca1e435..4a25a1e39831 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1695,7 +1695,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
 	struct snd_soc_dpcm *dpcm;
 	struct snd_soc_pcm_runtime *fe = asoc_substream_to_rtd(fe_substream);
 	struct snd_soc_dai *fe_cpu_dai;
-	int err;
+	int err = 0;
 	int i;
 
 	/* apply symmetry for FE */
-- 
2.30.2