[PATCH net 5/6] net: hns3: check vlan id before using it

[Guangbin Huang]

From: liaoguojia <liaoguojia@xxxxxxxxxx>

The input parameters may not be reliable, so check the vlan id before
using it, otherwise may set wrong vlan id into hardware.

Fixes: dc8131d846d4 ("net: hns3: Fix for packet loss due wrong filter config in VLAN tbls")
Signed-off-by: liaoguojia <liaoguojia@xxxxxxxxxx>
Signed-off-by: Guangbin Huang <huangguangbin2@xxxxxxxxxx>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index afc88a41a89c..14e9daf09f8c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -9817,6 +9817,9 @@ static int hclge_set_vlan_filter_hw(struct hclge_dev *hdev, __be16 proto,
 	if (is_kill && !vlan_id)
 		return 0;
 
+	if (vlan_id >= VLAN_N_VID)
+		return -EINVAL;
+
 	ret = hclge_set_vf_vlan_common(hdev, vport_id, is_kill, vlan_id);
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
-- 
2.33.0