linux-kernel - Re: [PATCH net] net: marvell: prestera: add missing unregister_netdev() in prestera_port

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Date:   Tue, 22 Nov 2022 13:27:04 +0100
From:   Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To:     Zhang Changzhong <zhangchangzhong@...wei.com>
CC:     Taras Chornyi <tchornyi@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Oleksandr Mazur <oleksandr.mazur@...ision.eu>,
        Yevhen Orlov <yevhen.orlov@...ision.eu>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net] net: marvell: prestera: add missing
 unregister_netdev() in prestera_port_create()

On Tue, Nov 22, 2022 at 07:10:31PM +0800, Zhang Changzhong wrote:
> If prestera_port_sfp_bind() fails, unregister_netdev() should be called
> in error handling path.
> 
> Compile tested only.
> 
> Fixes: 52323ef75414 ("net: marvell: prestera: add phylink support")
> Signed-off-by: Zhang Changzhong <zhangchangzhong@...wei.com>

Makes sense and fixes commit is correct.
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>

> ---
>  drivers/net/ethernet/marvell/prestera/prestera_main.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
> index 24f9d60..47796e4 100644
> --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
> +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
> @@ -746,6 +746,7 @@ static int prestera_port_create(struct prestera_switch *sw, u32 id)
>  	return 0;
>  
>  err_sfp_bind:
> +	unregister_netdev(dev);
>  err_register_netdev:
>  	prestera_port_list_del(port);
>  err_port_init:
> -- 
> 2.9.5
>