netdev - Re: [PATCH 2/2] net: dsa: remove phy

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Message-ID: <8737szi7e0.fsf@ketchup.mtl.sfl>
Date:	Thu, 11 Feb 2016 10:39:03 -0500
From:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:	Sascha Hauer <s.hauer@...gutronix.de>, netdev@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
	Guenter Roeck <linux@...ck-us.net>,
	Sascha Hauer <s.hauer@...gutronix.de>, narmstrong@...libre.com
Subject: Re: [PATCH 2/2] net: dsa: remove phy_disconnect from error path

Hi Sascha,

Sascha Hauer <s.hauer@...gutronix.de> writes:

> The phy has not been initialized, disconnecting it in the error
> path results in a NULL pointer exception. Drop the phy_disconnect
> from the error path.
>
> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
> ---
>  net/dsa/slave.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/net/dsa/slave.c b/net/dsa/slave.c
> index 40b9ca7..91e3b2f 100644
> --- a/net/dsa/slave.c
> +++ b/net/dsa/slave.c
> @@ -1194,7 +1194,6 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
>  	if (ret) {
>  		netdev_err(master, "error %d registering interface %s\n",
>  			   ret, slave_dev->name);
> -		phy_disconnect(p->phy);
>  		ds->ports[port] = NULL;
>  		free_netdev(slave_dev);
>  		return ret;

I'm adding Neil in the loop, since he did some work similar to this, if
I'm not mistaken.

Thanks,
-v