netdev - [net-next 07/15] net/mlx5e: Remove incorrect debugfs_create

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Message-Id: <20230208003712.68386-8-saeed@kernel.org>
Date:   Tue,  7 Feb 2023 16:37:04 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>,
        Gal Pressman <gal@...dia.com>,
        Dan Carpenter <error27@...il.com>
Subject: [net-next 07/15] net/mlx5e: Remove incorrect debugfs_create_dir NULL check in hairpin

From: Gal Pressman <gal@...dia.com>

Remove the NULL check on debugfs_create_dir() return value as the
function returns an ERR pointer on failure, not NULL.
The check is not replaced with a IS_ERR_OR_NULL() as
debugfs_create_file(), and debugfs functions in general don't need error
checking.

Fixes: 0e414518d6d8 ("net/mlx5e: Add hairpin debugfs files")
Reported-by: Dan Carpenter <error27@...il.com>
Signed-off-by: Gal Pressman <gal@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index bf4cff8b1d42..e2ec80ebde58 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1124,8 +1124,6 @@ static void mlx5e_tc_debugfs_init(struct mlx5e_tc_table *tc,
 		return;
 
 	tc->dfs_root = debugfs_create_dir("tc", dfs_root);
-	if (!tc->dfs_root)
-		return;
 
 	debugfs_create_file("hairpin_num_queues", 0644, tc->dfs_root,
 			    &tc->hairpin_params, &fops_hairpin_queues);
-- 
2.39.1