[PATCH net-next] net/mlx5e: Use PTR_ERR_OR_ZERO in mlx5e_tc_add_nic_flow()

[YueHaibing]

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 3917834b48ff..9d38c9e88f76 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -985,10 +985,7 @@ mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
                                            &flow_act, dest, dest_ix);
        mutex_unlock(&priv->fs.tc.t_lock);
 
-       if (IS_ERR(flow->rule[0]))
-               return PTR_ERR(flow->rule[0]);
-
-       return 0;
+       return PTR_ERR_OR_ZERO(flow->rule[0]);
 }
 
 static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv,