From 4243e0457c9b1fe5e96fba19296469466eb24b1d Mon Sep 17 00:00:00 2001 From: Christophe Jaillet Date: Sun, 27 Aug 2017 08:46:50 +0200 Subject: [PATCH] ASoC: davinci-mcasp: check memory allocation failure Check memory allocation failures and return -ENOMEM in such cases, as already done above for another memory allocation. This avoids NULL pointers dereference. Signed-off-by: Christophe JAILLET Signed-off-by: Mark Brown --- sound/soc/davinci/davinci-mcasp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index d486908d4e0e..f395bbc7c354 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -1851,6 +1851,10 @@ static int davinci_mcasp_probe(struct platform_device *pdev) mcasp->context.xrsr_regs = devm_kzalloc(&pdev->dev, sizeof(u32) * mcasp->num_serializer, GFP_KERNEL); + if (!mcasp->context.xrsr_regs) { + ret = -ENOMEM; + goto err; + } #endif mcasp->serial_dir = pdata->serial_dir; mcasp->version = pdata->version;