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 <[email protected]> --- drivers/gpio/gpio-xgene-sb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c index b6a15c3..fb9d29a 100644 --- a/drivers/gpio/gpio-xgene-sb.c +++ b/drivers/gpio/gpio-xgene-sb.c @@ -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, -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
