linux-kernel - [PATCH 01/10] ASoC: fsl: fsl_qmc_audio: Check devm

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Message-ID: <20240620084300.397853-2-herve.codina@bootlin.com>
Date: Thu, 20 Jun 2024 10:42:48 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Herve Codina <herve.codina@...tlin.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Qiang Zhao <qiang.zhao@....com>,
	Shengjiu Wang <shengjiu.wang@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>,
	Fabio Estevam <festevam@...il.com>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>
Cc: alsa-devel@...a-project.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	stable@...r.kernel.org
Subject: [PATCH 01/10] ASoC: fsl: fsl_qmc_audio: Check devm_kasprintf() returned value

devm_kasprintf() can return a NULL pointer on failure but this returned
value is not checked.

Fix this lack and check the returned value.

Fixes: 075c7125b11c ("ASoC: fsl: Add support for QMC audio")
Cc: stable@...r.kernel.org
Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
 sound/soc/fsl/fsl_qmc_audio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/fsl/fsl_qmc_audio.c b/sound/soc/fsl/fsl_qmc_audio.c
index bfaaa451735b..dd90ef16fa97 100644
--- a/sound/soc/fsl/fsl_qmc_audio.c
+++ b/sound/soc/fsl/fsl_qmc_audio.c
@@ -604,6 +604,8 @@ static int qmc_audio_dai_parse(struct qmc_audio *qmc_audio, struct device_node *
 
 	qmc_dai->name = devm_kasprintf(qmc_audio->dev, GFP_KERNEL, "%s.%d",
 				       np->parent->name, qmc_dai->id);
+	if (!qmc_dai->name)
+		return -ENOMEM;
 
 	qmc_dai->qmc_chan = devm_qmc_chan_get_byphandle(qmc_audio->dev, np,
 							"fsl,qmc-chan");
-- 
2.45.0