Commit 0bb51a3a authored by Yang Yingliang's avatar Yang Yingliang Committed by David S. Miller
Browse files

net: mvpp2: check return value after calling platform_get_resource() 



It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3710e809

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

+4 −0
Original line number Diff line number Diff line
@@ -7377,6 +7377,10 @@ static int mvpp2_probe(struct platform_device *pdev) 
			return PTR_ERR(priv->lms_base);

	} else {

		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);

		if (!res) {

			dev_err(&pdev->dev, "Invalid resource\n");

			return -EINVAL;

		}

		if (has_acpi_companion(&pdev->dev)) {

			/* In case the MDIO memory region is declared in

			 * the ACPI, it can already appear as 'in-use'