netdev - Re: [PATCH] macb: fix mdiobus

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Date:	Mon, 2 May 2016 09:39:52 +0200
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	<netdev@...r.kernel.org>, David Miller <davem@...emloft.net>
Subject: Re: [PATCH] macb: fix mdiobus_scan() error check

Le 01/05/2016 00:47, Sergei Shtylyov a écrit :
> Now mdiobus_scan() returns ERR_PTR(-ENODEV) instead of NULL if the PHY
> device ID was read as all ones. As this was not  an error before, this
> value  should be filtered out now in this driver.
> 
> Fixes: b74766a0a0fe ("phylib: don't return NULL from get_phy_device()")
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

Thanks.

> 
> ---
> The patch is against DaveM's 'net-next.git' repo.
> 
>  drivers/net/ethernet/cadence/macb.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> Index: net-next/drivers/net/ethernet/cadence/macb.c
> ===================================================================
> --- net-next.orig/drivers/net/ethernet/cadence/macb.c
> +++ net-next/drivers/net/ethernet/cadence/macb.c
> @@ -458,7 +458,8 @@ static int macb_mii_init(struct macb *bp
>  				struct phy_device *phydev;
>  
>  				phydev = mdiobus_scan(bp->mii_bus, i);
> -				if (IS_ERR(phydev)) {
> +				if (IS_ERR(phydev) &&
> +				    PTR_ERR(phydev) != -ENODEV) {
>  					err = PTR_ERR(phydev);
>  					break;
>  				}
> 
> 


-- 
Nicolas Ferre