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net: hisilicon: hns: fix error return code of hns_nic_clear_all_rx_fetch()

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When hns_assemble_skb() returns NULL to skb, no error return code of
hns_nic_clear_all_rx_fetch() is assigned.
To fix this bug, ret is assigned with -ENOMEM in this case.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jia-Ju Bai 2021-03-07 00:40:12 -08:00 committed by David S. Miller
parent 4d8c79b7e9
commit 143c253f42
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/hisilicon/hns/hns_enet.c
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@ -1663,8 +1663,10 @@ static int hns_nic_clear_all_rx_fetch(struct net_device *ndev)
for (j = 0; j < fetch_num; j++) {
/* alloc one skb and init */
skb = hns_assemble_skb(ndev);
if (!skb)
if (!skb) {
ret = -ENOMEM;
goto out;
}
rd = &tx_ring_data(priv, skb->queue_mapping);
hns_nic_net_xmit_hw(ndev, skb, rd);