linux-kernel - [PATCH -next] ASoC: fix return value check in mt6351_codec_driver

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Date:   Mon, 7 May 2018 01:39:45 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        Kai Chieh Chuang <kaichieh.chuang@...iatek.com>
CC:     Wei Yongjun <weiyongjun1@...wei.com>,
        <alsa-devel@...a-project.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: [PATCH -next] ASoC: fix return value check in mt6351_codec_driver_probe()

In case of error, the function dev_get_regmap() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 sound/soc/codecs/mt6351.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/mt6351.c b/sound/soc/codecs/mt6351.c
index e739f07..f73dcd7 100644
--- a/sound/soc/codecs/mt6351.c
+++ b/sound/soc/codecs/mt6351.c
@@ -1472,8 +1472,8 @@ static int mt6351_codec_driver_probe(struct platform_device *pdev)
 	priv->dev = &pdev->dev;
 
 	priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
-	if (IS_ERR(priv->regmap))
-		return PTR_ERR(priv->regmap);
+	if (!priv->regmap)
+		return -ENODEV;
 
 	dev_dbg(priv->dev, "%s(), dev name %s\n",
 		__func__, dev_name(&pdev->dev));