net/mlx5: remove redundant ret variable

Return value from mlx5dr_send_postsend_action() directly instead of taking
this in another redundant variable.

Signed-off-by: zhang songyi <zhang.songyi@zte.com.cn>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c

@@ -724,7 +724,6 @@ int mlx5dr_send_postsend_action(struct mlx5dr_domain *dmn,
 				struct mlx5dr_action *action)
 {
 	struct postsend_info send_info = {};
-	int ret;
 
 	send_info.write.addr = (uintptr_t)action->rewrite->data;
 	send_info.write.length = action->rewrite->num_of_actions *
@@ -734,9 +733,7 @@ int mlx5dr_send_postsend_action(struct mlx5dr_domain *dmn,
 		mlx5dr_icm_pool_get_chunk_mr_addr(action->rewrite->chunk);
 	send_info.rkey = mlx5dr_icm_pool_get_chunk_rkey(action->rewrite->chunk);
 
-	ret = dr_postsend_icm_data(dmn, &send_info);
-
-	return ret;
+	return dr_postsend_icm_data(dmn, &send_info);
 }
 
 static int dr_modify_qp_rst2init(struct mlx5_core_dev *mdev,