From: Sungbo Eo Date: Sat, 25 Apr 2020 08:35:53 +0000 (+0900) Subject: ramips: 5.4: handle ERR_PTR properly X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f7112a180f3655c56fb2c31eff286ee98983ca45;p=openwrt%2Fstaging%2Fmkresin.git ramips: 5.4: handle ERR_PTR properly of_get_mac_address can return ERR_PTR since 5.2, so the return pointer should be checked before used. Otherwise it might cause an oops during boot. Signed-off-by: Sungbo Eo --- diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c index 7191a7a382..358a8fc16d 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c @@ -1401,7 +1401,7 @@ static int __init fe_init(struct net_device *dev) fe_reset_phy(priv); mac_addr = of_get_mac_address(priv->dev->of_node); - if (mac_addr) + if (!IS_ERR_OR_NULL(mac_addr)) ether_addr_copy(dev->dev_addr, mac_addr); /* If the mac address is invalid, use random mac address */