linux-kernel - Re: [PATCH V2] net: mdio: thunder: Fix a double free issue in the .remove function

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Message-ID: <YJ0aUoUNn7/aIPaC@lunn.ch>
Date:   Thu, 13 May 2021 14:23:46 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     hkallweit1@...il.com, linux@...linux.org.uk, davem@...emloft.net,
        kuba@...nel.org, david.daney@...ium.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH V2] net: mdio: thunder: Fix a double free issue in the
 .remove function

On Thu, May 13, 2021 at 09:44:49AM +0200, Christophe JAILLET wrote:
> 'bus->mii_bus' have been allocated with 'devm_mdiobus_alloc_size()' in the
> probe function. So it must not be freed explicitly or there will be a
> double free.
> 
> Remove the incorrect 'mdiobus_free' in the remove function.
> 
> Fixes: 379d7ac7ca31 ("phy: mdio-thunder: Add driver for Cavium Thunder SoC MDIO buses.")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew