linux-kernel - [PATCH v2 2/3] ASoC: fsl-asoc-card: Handle return value of devm

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Date:   Thu, 21 Sep 2017 10:50:03 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, timur@...i.org, nicoleotsuka@...il.com,
        Xiubo.Lee@...il.com, fabio.estevam@....com, peter.ujfalusi@...com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-omap@...r.kernel.org
Subject: [PATCH v2 2/3] ASoC: fsl-asoc-card: Handle return value of devm_kasprintf

devm_kasprintf() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
changes in v2:
               Set return 'ret' to -ENOMEM.

 sound/soc/fsl/fsl-asoc-card.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index 2db4d0c..a389885 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -639,6 +639,10 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 				devm_kasprintf(&pdev->dev, GFP_KERNEL,
 					       "ac97-codec.%u",
 					       (unsigned int)idx);
+		if (!priv->dai_link[0].codec_name) {
+			ret = -ENOMEM;
+			goto asrc_fail;
+		}
 	}
 
 	priv->dai_link[0].platform_of_node = cpu_np;
-- 
1.9.1