From: Arnd Bergmann <arnd@kernel.org>
To: Timur Tabi <timur@kernel.org>,
Nicolin Chen <nicoleotsuka@gmail.com>,
Mark Brown <broonie@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>, Xiubo Li <Xiubo.Lee@gmail.com>,
Fabio Estevam <festevam@gmail.com>,
Shengjiu Wang <shengjiu.wang@gmail.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
NXP Linux Team <linux-imx@nxp.com>,
Nathan Chancellor <natechancellor@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>,
alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: [PATCH] ASoC: fsl: fix -Wmaybe-uninitialized warning
Date: Wed, 30 Dec 2020 16:44:15 +0100 [thread overview]
Message-ID: <20201230154443.656997-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
Clang points out a code path that returns an undefined value
in an error case:
sound/soc/fsl/imx-hdmi.c:165:6: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsom
etimes-uninitialized]
if ((hdmi_out && hdmi_in) || (!hdmi_out && !hdmi_in)) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sound/soc/fsl/imx-hdmi.c:212:9: note: uninitialized use occurs here
return ret;
The driver returns -EINVAL for other broken DT properties, so do
it the same way here.
Fixes: 6a5f850aa83a ("ASoC: fsl: Add imx-hdmi machine driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
sound/soc/fsl/imx-hdmi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/fsl/imx-hdmi.c b/sound/soc/fsl/imx-hdmi.c
index 2c2a76a71940..ede4a9ad1054 100644
--- a/sound/soc/fsl/imx-hdmi.c
+++ b/sound/soc/fsl/imx-hdmi.c
@@ -164,6 +164,7 @@ static int imx_hdmi_probe(struct platform_device *pdev)
if ((hdmi_out && hdmi_in) || (!hdmi_out && !hdmi_in)) {
dev_err(&pdev->dev, "Invalid HDMI DAI link\n");
+ ret = -EINVAL;
goto fail;
}
--
2.29.2
next reply other threads:[~2020-12-30 15:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 15:44 Arnd Bergmann [this message]
2020-12-31 8:12 ` [PATCH] ASoC: fsl: fix -Wmaybe-uninitialized warning Nathan Chancellor
2020-12-31 20:07 ` Nicolin Chen
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