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ASoC: imx-card: Add NULL check in imx_card_probe()

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[ Upstream commit 93d34608fd162f725172e780b1c60cc93a920719 ]

devm_kasprintf() returns NULL when memory allocation fails. Currently,
imx_card_probe() does not check for this case, which results in a NULL
pointer dereference.

Add NULL check after devm_kasprintf() to prevent this issue.

Fixes: aa736700f4 ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250401142510.29900-1-bsdhenrymartin@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Henry Martin 2025-04-01 22:25:10 +08:00 committed by Greg Kroah-Hartman
parent 8d78931a15
commit 38253922a8
1 changed files with 4 additions and 0 deletions
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4
sound/soc/fsl/imx-card.c
View File

@ -759,6 +759,8 @@ static int imx_card_probe(struct platform_device *pdev)
data->dapm_routes[i].sink =
devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s",
i + 1, "Playback");
if (!data->dapm_routes[i].sink)
return -ENOMEM;
data->dapm_routes[i].source = "CPU-Playback";
}
}
@ -776,6 +778,8 @@ static int imx_card_probe(struct platform_device *pdev)
data->dapm_routes[i].source =
devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s",
i + 1, "Capture");
if (!data->dapm_routes[i].source)
return -ENOMEM;
data->dapm_routes[i].sink = "CPU-Capture";
}
}