linux-kernel - Re: [PATCH net] net: ethernet: mtk_eth

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Message-ID: <ZFoA9kTa57yakps0@corigine.com>
Date:   Tue, 9 May 2023 10:14:46 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH net] net: ethernet: mtk_eth_soc: fix NULL pointer
 dereference

On Tue, May 09, 2023 at 03:20:06AM +0200, Daniel Golle wrote:
> Check for NULL pointer to avoid kernel crashing in case of missing WO
> firmware in case only a single WEDv2 device has been initialized, e.g. on
> MT7981 which can connect just one wireless frontend.
> 
> Fixes: 86ce0d09e424 ("net: ethernet: mtk_eth_soc: use WO firmware for MT7981")
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>

Reviewed-by: Simon Horman <simon.horman@...igine.com>