net/mlx5: Restore missing scheduling node cleanup on vport enable failure

Restore the __esw_qos_free_node() call removed by the offending commit.

Fixes: 97733d1 ("net/mlx5: Add traffic class scheduling support for vport QoS")
Signed-off-by: Carolina Jubran <[email protected]>
Reviewed-by: Tariq Toukan <[email protected]>
Reviewed-by: Cosmin Ratiu <[email protected]>
Signed-off-by: Mark Bloch <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: cjubran

drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c

@@ -1122,6 +1122,7 @@ static int mlx5_esw_qos_vport_enable(struct mlx5_vport *vport, enum sched_node_t
 	vport->qos.sched_node = sched_node;
 	err = esw_qos_vport_enable(vport, type, parent, extack);
 	if (err) {
+		__esw_qos_free_node(sched_node);
 		esw_qos_put(esw);
 		vport->qos.sched_node = NULL;
 	}