From: Alexander Shiyan Date: Sat, 15 Feb 2014 19:28:29 +0000 (+0400) Subject: ASoC: txx9aclc_ac97: Fix kernel crash on probe X-Git-Tag: v3.13.6~85 X-Git-Url: https://git.fsl.cs.sunysb.edu/?a=commitdiff_plain;h=aa4d50b2100cf719f4dddc6d59f86fcf841975b6;p=unionfs-2.6.39.y.git ASoC: txx9aclc_ac97: Fix kernel crash on probe commit 9febd494d15c4a351e9c9cae7184643144eea892 upstream. This patch fixes a crash caused by commit 3bed3344c826 (ASoC: txx9aclc_ac97: Convert to devm_ioremap_resource()). This is an attempt to assign "drvdata->base" while memory for "drvdata" is not already allocated. Fixes: 3bed3344c826 (ASoC: txx9aclc_ac97: Convert to devm_ioremap_resource()) Signed-off-by: Alexander Shiyan Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- diff --git a/sound/soc/txx9/txx9aclc-ac97.c b/sound/soc/txx9/txx9aclc-ac97.c index e0305a14856..9edd68db9f4 100644 --- a/sound/soc/txx9/txx9aclc-ac97.c +++ b/sound/soc/txx9/txx9aclc-ac97.c @@ -183,14 +183,16 @@ static int txx9aclc_ac97_dev_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; + + drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); drvdata->base = devm_ioremap_resource(&pdev->dev, r); if (IS_ERR(drvdata->base)) return PTR_ERR(drvdata->base); - drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; platform_set_drvdata(pdev, drvdata); drvdata->physbase = r->start; if (sizeof(drvdata->physbase) > sizeof(r->start) &&