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net: hns: fix return value check in __lb_other_process() 

[ Upstream commit 5ede3ada3d ]

The function skb_copy() could return NULL, the return value
need to be checked.

Fixes: b5996f11ea ("net: add Hisilicon Network Subsystem basic ethernet support")
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Yunjian Wang 2020-12-26 16:10:05 +08:00 committed by Greg Kroah-Hartman
parent e40b5fc791
commit 606f5412ad
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
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@ -415,6 +415,10 @@ static void __lb_other_process(struct hns_nic_ring_data *ring_data,
/* for mutl buffer*/
new_skb = skb_copy(skb, GFP_ATOMIC);
dev_kfree_skb_any(skb);
if (!new_skb) {
netdev_err(ndev, "skb alloc failed\n");
return;
}
skb = new_skb;
check_ok = 0;