net/mlx5e: Fix an error code in mlx5e_arfs_create_tables()

When the code execute 'if (!priv->fs.arfs->wq)', the value of err is 0.
So, we use -ENOMEM to indicate that the function
create_singlethread_workqueue() return NULL.

Clean up smatch warning:
drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c:373
mlx5e_arfs_create_tables() warn: missing error code 'err'.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Fixes: f6755b80d693 ("net/mlx5e: Dynamic alloc arfs table for netdev when needed")
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
index 5cd466e..25403af 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
@@ -356,7 +356,7 @@ err:
 
 int mlx5e_arfs_create_tables(struct mlx5e_priv *priv)
 {
-       int err = 0;
+       int err = -ENOMEM;
        int i;
 
        if (!(priv->netdev->hw_features & NETIF_F_NTUPLE))