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net: hns3: modify the return code of hclge_get_ring_chain_from_mbx

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Currently, function hclge_get_ring_chain_from_mbx will return -ENOMEM if
ring_num is bigger than HCLGE_MBX_MAX_RING_CHAIN_PARAM_NUM. It is better to
return -EINVAL for the invalid parameter case.

So this patch fixes it by return -EINVAL in this abnormal branch.

Fixes: 5d02a58dae60 ("net: hns3: fix for buffer overflow smatch warning")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jie Wang 2022-04-24 20:57:23 +08:00 committed by David S. Miller
parent 123521b6b2
commit 48009e9972
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
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@ -176,7 +176,7 @@ static int hclge_get_ring_chain_from_mbx(
ring_num = req->msg.ring_num;
if (ring_num > HCLGE_MBX_MAX_RING_CHAIN_PARAM_NUM)
return -ENOMEM;
return -EINVAL;
for (i = 0; i < ring_num; i++) {
if (req->msg.param[i].tqp_index >= vport->nic.kinfo.rss_size) {