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pinctrl: ns2: Fix potential NULL dereference 

platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference
a bit later in the code.

Signed-off-by: Young Xiao <92siuyang@gmail.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
alistair/sunxi64-5.4-dsi
Young Xiao 2019-05-29 10:43:58 +08:00 committed by Linus Walleij
parent 3a11cf2217
commit f38b506923
1 changed files with 2 additions and 0 deletions
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2
drivers/pinctrl/bcm/pinctrl-ns2-mux.c
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@ -1048,6 +1048,8 @@ static int ns2_pinmux_probe(struct platform_device *pdev)
return PTR_ERR(pinctrl->base0);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res)
return -EINVAL;
pinctrl->base1 = devm_ioremap_nocache(&pdev->dev, res->start,
resource_size(res));
if (!pinctrl->base1) {