The __esw_qos_alloc_node() function returns NULL on error.  It doesn't
return error pointers.  Update the error checking to match.

Fixes: 96619c485fa6 ("net/mlx5: Add support for setting tc-bw on nodes")
Signed-off-by: Dan Carpenter <redacted>
---
  drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
index e1cef8dd3b4d..91d863c8c152 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c

@@ -1405,9 +1405,10 @@ esw_qos_move_node(struct mlx5_esw_sched_node *curr_node)
  
  	new_node = __esw_qos_alloc_node(curr_node->esw, curr_node->ix,
  					curr_node->type, NULL);
-	if (!IS_ERR(new_node))
-		esw_qos_nodes_set_parent(&curr_node->children, new_node);
+	if (!new_node)
+		return ERR_PTR(-ENOMEM);
  
+	esw_qos_nodes_set_parent(&curr_node->children, new_node);
  	return new_node;
  }