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authorSungbo Eo <mans0n@gorani.run>2020-04-25 17:35:53 +0900
committerChuanhong Guo <gch981213@gmail.com>2020-05-19 19:03:07 +0800
commitf7112a180f3655c56fb2c31eff286ee98983ca45 (patch)
tree2e53042c590991874603fc96438eb9a0749fb9c8 /target/linux/ramips/files/drivers
parent0a05d71f6f34d2e9101fa40e9643d4f7bc8e7501 (diff)
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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 <mans0n@gorani.run>
Diffstat (limited to 'target/linux/ramips/files/drivers')
-rw-r--r--target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c2
1 files changed, 1 insertions, 1 deletions
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 */