linux-kernel - Re: [PATCH v2] net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios

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Message-ID: <Yo9wG64tuB2Tx0SK@lunn.ch>
Date:   Thu, 26 May 2022 14:18:35 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Miaoqian Lin <linmq006@...il.com>
Cc:     Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: dsa: mv88e6xxx: Fix refcount leak in
 mv88e6xxx_mdios_register

On Thu, May 26, 2022 at 03:24:15PM +0400, Miaoqian Lin wrote:
> of_get_child_by_name() returns a node pointer with refcount
> incremented, we should use of_node_put() on it when done.
> This function missing of_node_put() in an error path.
> Add missing of_node_put() to avoid refcount leak.

What about releasing the reference on the non error case?
Where is that.

     Andrew