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Commit 8d8ee18c authored by Axel Lin's avatar Axel Lin Committed by Linus Walleij
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gpio: xgene: Prevent NULL pointer dereference 



platform_get_resource() can return NULL, thus add NULL test to prevent NULL
pointer dereference.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent fd975a7b

drivers/gpio/gpio-xgene.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -173,6 +173,11 @@ static int xgene_gpio_probe(struct platform_device *pdev) 
	}

	}





	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		err = -EINVAL;

		goto err;

	}



	gpio->base = devm_ioremap_nocache(&pdev->dev, res->start,

	gpio->base = devm_ioremap_nocache(&pdev->dev, res->start,

							resource_size(res));

							resource_size(res));

	if (!gpio->base) {

	if (!gpio->base) {