Unverified Commit 93d34608 authored by Henry Martin's avatar Henry Martin Committed by Mark Brown
Browse files

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



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: aa736700 ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: default avatarHenry Martin <bsdhenrymartin@gmail.com>
Reviewed-by: default avatarFrank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250401142510.29900-1-bsdhenrymartin@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent cc80b44b

sound/soc/fsl/imx-card.c

+4 −0
Original line number Diff line number Diff line
@@ -772,6 +772,8 @@ 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";

			}

		}
@@ -789,6 +791,8 @@ 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";

			}

		}