From: Varka Bhadram
> On 07/14/2014 02:32 PM, Jongsung Kim wrote:
> > This patch enables the ethtool utility to control the WOL function
> > of the PHY connected to the GEM/MACB. (if supported)
...
> > +static int macb_set_wol(struct net_device *netdev, struct ethtool_wolinfo
> > *wol)
> > +{
> > + struct macb *bp = netdev_priv(netdev);
> > + struct phy_device *phydev = bp->phy_dev;
> > + int err = -ENODEV;
> > +
> > + if (phydev)
> > + err = phy_ethtool_set_wol(phydev, wol);
> > +
> > + return err;
> > +}
> > +
>
> I think we can do in this way:
>
> if (phydev)
> return phy_ethtool_set_wol(phydev, wol);
> else
> return -ENODEV;
>
>
> we can save err. What do you say ...?
I would do:
if (!phydev)
return -ENODEV;
return phy_ethtool_set_wol(phydev, wol);
Although it might even be worth moving the NULL test into the function.
(sort of depends on style and the number of callers who need to do the test.)
David
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