From: Charles Han Date: Mon, 18 Nov 2024 08:45:53 +0000 (+0800) Subject: ASoC: imx-audmix: Add NULL check in imx_audmix_probe X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e038f43edaf0083f6aa7c9415d86cf28dfd152f9;p=users%2Fjedix%2Flinux-maple.git ASoC: imx-audmix: Add NULL check in imx_audmix_probe devm_kasprintf() can return a NULL pointer on failure,but this returned value in imx_audmix_probe() is not checked. Add NULL check in imx_audmix_probe(), to handle kernel NULL pointer dereference error. Fixes: 05d996e11348 ("ASoC: imx-audmix: Split capture device for audmix") Signed-off-by: Charles Han Link: https://patch.msgid.link/20241118084553.4195-1-hanchunchao@inspur.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/fsl/imx-audmix.c b/sound/soc/fsl/imx-audmix.c index dcf770b55c4b..231400661c90 100644 --- a/sound/soc/fsl/imx-audmix.c +++ b/sound/soc/fsl/imx-audmix.c @@ -274,6 +274,9 @@ static int imx_audmix_probe(struct platform_device *pdev) /* Add AUDMIX Backend */ be_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "audmix-%d", i); + if (!be_name) + return -ENOMEM; + priv->dai[num_dai + i].cpus = &dlc[1]; priv->dai[num_dai + i].codecs = &snd_soc_dummy_dlc;