[PATCH net-next] net/mlx5: Fix an IS_ERR() vs NULL bug in esw_qos_move_node()
From: Dan Carpenter <hidden>
Date: 2025-07-15 23:01:32
Also in:
kernel-janitors, linux-rdma, lkml
Subsystem:
mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Leon Romanovsky, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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; }
--
2.47.2