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| author |   Yunsheng Lin <linyunsheng@huawei.com> | 2019-06-13 17:12:30 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-14 19:26:16 -0700 |
| commit | 8f9eed1a8791b83eb1c54c261d68424717e4111e (patch) | |
| tree | 86b6eef3cccc8c0eef2ec449bb84d2ebea9cc3e1 | |
| parent | net: hns3: fix for dereferencing before null checking (diff) | |
| download | linux-dev-8f9eed1a8791b83eb1c54c261d68424717e4111e.tar.xz linux-dev-8f9eed1a8791b83eb1c54c261d68424717e4111e.zip | |
net: hns3: fix for skb leak when doing selftest
If hns3_nic_net_xmit does not return NETDEV_TX_BUSY when doing
a loopback selftest, the skb is not freed in hns3_clean_tx_ring
or hns3_nic_net_xmit, which causes skb not freed problem.
This patch fixes it by freeing skb when hns3_nic_net_xmit does
not return NETDEV_TX_OK.
Fixes: c39c4d98dc65 ("net: hns3: Add mac loopback selftest support in hns3 driver")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c index 6ce724d54280..0998647da15d 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c @@ -250,11 +250,13 @@ static int hns3_lp_run_test(struct net_device *ndev, enum hnae3_loop mode) skb_get(skb); tx_ret = hns3_nic_net_xmit(skb, ndev); - if (tx_ret == NETDEV_TX_OK) + if (tx_ret == NETDEV_TX_OK) { good_cnt++; - else + } else { + kfree_skb(skb); netdev_err(ndev, "hns3_lb_run_test xmit failed: %d\n", tx_ret); + } } if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) { ret_val = HNS3_NIC_LB_TEST_TX_CNT_ERR; |