linux-kernel - [PATCH] ASoC: soc-pcm: return correct -ERRNO in failure path

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Message-Id: <1610163901-5523-1-git-send-email-jrdr.linux@gmail.com>
Date:   Sat,  9 Jan 2021 09:15:01 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Souptick Joarder <jrdr.linux@...il.com>
Subject: [PATCH] ASoC: soc-pcm: return correct -ERRNO in failure path

Kernel test robot throws below error ->

sound/soc/soc-pcm.c:2523 dpcm_run_update_startup() error: uninitialized
symbol 'ret'.

Initializing ret = 0 and returning correct -ERRNO in failure path.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
 sound/soc/soc-pcm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 481a4a2..29328ce 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2432,7 +2432,7 @@ static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
 		snd_soc_dpcm_get_substream(fe, stream);
 	struct snd_soc_dpcm *dpcm;
 	enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream];
-	int ret;
+	int ret = 0;
 	unsigned long flags;
 
 	dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n",
@@ -2441,6 +2441,7 @@ static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
 	/* Only start the BE if the FE is ready */
 	if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE ||
 		fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) {
+		ret = -EINVAL;
 		dev_err(fe->dev, "ASoC: FE %s is not ready %d\n",
 			fe->dai_link->name, fe->dpcm[stream].state);
 		goto disconnect;
-- 
1.9.1