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Date: Sat, 26 Dec 2020 16:10:05 +0800 From: wangyunjian <wangyunjian@...wei.com> To: <netdev@...r.kernel.org> CC: <yisen.zhuang@...wei.com>, <salil.mehta@...wei.com>, <liuyonglong@...wei.com>, <jerry.lilijun@...wei.com>, <xudingke@...wei.com>, Yunjian Wang <wangyunjian@...wei.com> Subject: [PATCH net v2] net: hns: fix return value check in __lb_other_process() From: Yunjian Wang <wangyunjian@...wei.com> The function skb_copy() could return NULL, the return value need to be checked. Fixes: b5996f11ea54 ("net: add Hisilicon Network Subsystem basic ethernet support") Signed-off-by: Yunjian Wang <wangyunjian@...wei.com> --- drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c index 7165da0ee9aa..a6e3f07caf99 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c @@ -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; -- 2.23.0
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