[PATCH net-next] net: mlx4: remove unneeded variable "err" in mlx4_en_ethtool_add_mac_rule()

[Jason Yan]

Fix the following coccicheck warning:

drivers/net/ethernet/mellanox/mlx4/en_ethtool.c:1396:5-8: Unneeded
variable: "err". Return "0" on line 1411

Signed-off-by: Jason Yan <yanai...@huawei.com>
---
 drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c 
b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 216e6b2e9eed..b816154bc79a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -1392,7 +1392,6 @@ static int mlx4_en_ethtool_add_mac_rule(struct 
ethtool_rxnfc *cmd,
                                        struct mlx4_spec_list *spec_l2,
                                        unsigned char *mac)
 {
-       int err = 0;
        __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
 
        spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
@@ -1407,7 +1406,7 @@ static int mlx4_en_ethtool_add_mac_rule(struct 
ethtool_rxnfc *cmd,
 
        list_add_tail(&spec_l2->list, rule_list_h);
 
-       return err;
+       return 0;
 }
 
 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
-- 
2.21.1