netdev - Re: [PATCH v3 net-next 3/4] net: macb: Add phy-handle DT support

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Date:   Mon, 12 Mar 2018 18:59:56 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Brad Mouring <brad.mouring@...com>
Cc:     Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Rob Herring <robh+dt@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Michael Grzeschik <m.grzeschik@...gutronix.de>,
        Mark Rutland <mark.rutland@....com>, netdev@...r.kernel.org,
        Julia Cartwright <julia@...com>, devicetree@...r.kernel.org
Subject: Re: [PATCH v3 net-next 3/4] net: macb: Add phy-handle DT support

> @@ -488,6 +488,9 @@ static int macb_mii_probe(struct net_device *dev)
>  			}
>  			bp->phy_node = of_node_get(np);
>  		} else {
> +			/* attempt to find a phy-handle */
> +			bp->phy_node = of_parse_phandle(np, "phy-handle", 0);
> +

Hi Brad

It seems like you should check the return value here, any only
continue with the fallback if there was not a phy-handle.

>  			/* fallback to standard phy registration if no phy were
>  			 * found during dt phy registration
>  			 */

	 Andrew