net: microchip: sparx5: Fix return value in sparx5_tc_setup_qdisc_ets()

Function sparx5_tc_setup_qdisc_ets() always returns negative value
because it return -EOPNOTSUPP in the end. This patch returns the
rersult of sparx5_tc_ets_add() and sparx5_tc_ets_del() directly.

Fixes: 21122542 ("net: microchip: sparx5: add support for offloading ets qdisc")
Signed-off-by: Lu Wei <luwei32@huawei.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/microchip/sparx5/sparx5_tc.c

@@ -90,13 +90,10 @@ static int sparx5_tc_setup_qdisc_ets(struct net_device *ndev,
 			}
 		}
 
-		sparx5_tc_ets_add(port, params);
-		break;
+		return sparx5_tc_ets_add(port, params);
 	case TC_ETS_DESTROY:
 
-		sparx5_tc_ets_del(port);
-
-		break;
+		return sparx5_tc_ets_del(port);
 	case TC_ETS_GRAFT:
 		return -EOPNOTSUPP;