linux-kernel - [PATCH v2] net/mlx5e: Fix an error code in mlx5e_arfs_create

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1622801307-34745-1-git-send-email-yang.lee@linux.alibaba.com>
Date:   Fri,  4 Jun 2021 18:08:27 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     saeedm@...dia.com
Cc:     leon@...nel.org, davem@...emloft.net, kuba@...nel.org,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH v2] 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@...ux.alibaba.com>
Fixes: f6755b80d693 ("net/mlx5e: Dynamic alloc arfs table for netdev when needed")
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---

Changes in v2:
--According to Saeed's suggestion, we modify the format of Fixes tag, 
--and initialize err to -ENOMEM.
https://lore.kernel.org/patchwork/patch/1440018/

 drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
@@ -356,7 +356,7 @@ static int arfs_create_table(struct mlx5e_priv *priv,
 
 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))
-- 
1.8.3.1