linux-kernel - [PATCH net v3] net: bonding: Fix error checking for debugfs_create

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Message-Id: <20230717085313.17188-1-machel@vivo.com>
Date:   Mon, 17 Jul 2023 16:53:02 +0800
From:   Wang Ming <machel@...o.com>
To:     Jay Vosburgh <j.vosburgh@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Yufeng Mo <moyufeng@...wei.com>,
        Guangbin Huang <huangguangbin2@...wei.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com, jay.vosburgh@...onical.com,
        Wang Ming <machel@...o.com>
Subject: [PATCH net v3] net: bonding: Fix error checking for debugfs_create_dir()

The debugfs_create_dir() function returns error pointers,
it never returns NULL. Most incorrect error checks were fixed,
but the one in bond_create_debugfs() was forgotten.

Fixes: 52333512701b ("net: bonding: remove unnecessary braces")
Signed-off-by: Wang Ming <machel@...o.com>
---
 drivers/net/bonding/bond_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_debugfs.c b/drivers/net/bonding/bond_debugfs.c
index 594094526648..d4a82f276e87 100644
--- a/drivers/net/bonding/bond_debugfs.c
+++ b/drivers/net/bonding/bond_debugfs.c
@@ -88,7 +88,7 @@ void bond_create_debugfs(void)
 {
 	bonding_debug_root = debugfs_create_dir("bonding", NULL);
 
-	if (!bonding_debug_root)
+	if (IS_ERR(bonding_debug_root))
 		pr_warn("Warning: Cannot create bonding directory in debugfs\n");
 }
 
-- 
2.25.1