netdev - Re: [PATCH net v3] net: bonding: Fix error checking for debugfs_create

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Message-ID: <2413.1689623712@famine>
Date: Mon, 17 Jul 2023 12:55:12 -0700
From: Jay Vosburgh <jay.vosburgh@...onical.com>
To: Tariq Toukan <ttoukan.linux@...il.com>
cc: Wang Ming <machel@...o.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, opensource.kernel@...o.com,
    Tariq Toukan <tariqt@...dia.com>
Subject: Re: [PATCH net v3] net: bonding: Fix error checking for debugfs_create_dir()

Tariq Toukan <ttoukan.linux@...il.com> wrote:
>On 17/07/2023 11:53, Wang Ming wrote:
>> 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")
>
>It's not this commit to blame...
>Issue was there in first place, starting in commit f073c7ca29a4 ("bonding:
>add the debugfs facility to the bonding driver").

	Agreed; please upate the Fixes: commit and resubmit, thanks.

	-J

>
>> 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");
>>   }
>>   

---
	-Jay Vosburgh, jay.vosburgh@...onical.com