Commit db8f7be1 authored by Yang Yingliang's avatar Yang Yingliang Committed by David S. Miller
Browse files

net: sgi: ioc3-eth: 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 daf6e8c9

drivers/net/ethernet/sgi/ioc3-eth.c

+4 −0
Original line number Diff line number Diff line
@@ -835,6 +835,10 @@ static int ioc3eth_probe(struct platform_device *pdev) 
	int err;



	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!regs) {

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

		return -EINVAL;

	}

	/* get mac addr from one wire prom */

	if (ioc3eth_get_mac_addr(regs, mac_addr))

		return -EPROBE_DEFER; /* not available yet */