netdev - [PATCH net 1/2] net/mlx5e: fix memory leak in mlx5e_fs_tt_redirect_any

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Message-ID: <20230629024642.2228767-2-shaozhengchao@huawei.com>
Date: Thu, 29 Jun 2023 10:46:41 +0800
From: Zhengchao Shao <shaozhengchao@...wei.com>
To: <netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <richardcochran@...il.com>
CC: <saeedm@...dia.com>, <leon@...nel.org>, <lkayal@...dia.com>,
	<tariqt@...dia.com>, <gal@...dia.com>, <rrameshbabu@...dia.com>,
	<vadfed@...a.com>, <ayal@...dia.com>, <eranbe@...dia.com>,
	<weiyongjun1@...wei.com>, <yuehaibing@...wei.com>, <shaozhengchao@...wei.com>
Subject: [PATCH net 1/2] net/mlx5e: fix memory leak in mlx5e_fs_tt_redirect_any_create

The memory pointed to by the fs->any pointer is not freed in the error
path of mlx5e_fs_tt_redirect_any_create, which can lead to a memory leak.
Fix by freeing the memory in the error path, thereby making the error path
identical to mlx5e_fs_tt_redirect_any_destroy().

Fixes: 0f575c20bf06 ("net/mlx5e: Introduce Flow Steering ANY API")
Signed-off-by: Zhengchao Shao <shaozhengchao@...wei.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c b/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c
index 03cb79adf912..9cf4ec931b8b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.c
@@ -594,7 +594,7 @@ int mlx5e_fs_tt_redirect_any_create(struct mlx5e_flow_steering *fs)
 
 	err = fs_any_create_table(fs);
 	if (err)
-		return err;
+		goto err_free_any;
 
 	err = fs_any_enable(fs);
 	if (err)
@@ -606,7 +606,7 @@ int mlx5e_fs_tt_redirect_any_create(struct mlx5e_flow_steering *fs)
 
 err_destroy_table:
 	fs_any_destroy_table(fs_any);
-
+err_free_any:
 	kfree(fs_any);
 	mlx5e_fs_set_any(fs, NULL);
 	return err;
-- 
2.34.1