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gpio: x-gene: fix devm_ioremap_resource() check 

devm_ioremap_resource() returns IOMEM_ERR_PTR() and it never
returns NULL, fix the check to prevent access to invalid
virtual address.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Vladimir Zapolskiy 2015-03-29 05:37:20 +03:00 committed by Linus Walleij
parent cbfb3ea7f8
commit 33c07b4677
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-xgene-sb.c
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@ -93,7 +93,7 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(&pdev->dev, res);
if (!regs)
if (IS_ERR(regs))
return PTR_ERR(regs);
ret = bgpio_init(&priv->bgc, &pdev->dev, 4,