linux-kernel - Re: [PATCH v2 2/2] phy: mdio: fix memory leak

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Date:   Thu, 30 Sep 2021 08:55:53 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     andrew@...n.ch, hkallweit1@...il.com, linux@...linux.org.uk,
        davem@...emloft.net, buytenh@...vell.com, afleming@...escale.com,
        dan.carpenter@...cle.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        syzbot+398e7dc692ddbbb4cfec@...kaller.appspotmail.com
Subject: Re: [PATCH v2 2/2] phy: mdio: fix memory leak

On 9/30/21 02:48, Jakub Kicinski wrote:
> On Tue, 28 Sep 2021 23:40:15 +0300 Pavel Skripkin wrote:
>> +	/* We need to set state to MDIOBUS_UNREGISTERED to correctly realese
>> +	 * the device in mdiobus_free()
>> +	 *
>> +	 * State will be updated later in this function in case of success
>> +	 */
>> +	bus->state == MDIOBUS_UNREGISTERED;
> 
> IDK how syzbot has tested it but clearly we should blindly
> depend on that.
> 
> s/==/=/
> 
> Compiler would have told you this.
> 
whooops... sorry about that. syzbot has tested v1. v2 is same, but 
without new state (so, the logic in v1 and v2 is the same).

I guess, it's copy-paste error on my side :). Will send v3 this evening



With regards,
Pavel Skripkin