net: phy: fix uninitalized ethtool_wolinfo in phy_suspend

Callers of phy_ethtool_get_wol are supposed to provide a properly
cleared struct ethtool_wolinfo. Therefore, fix phy_suspend to clear
it before passing it to phy_ethtool_get_wol.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 4b970f7..2f6989b 100644 (file)
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -683,10 +683,9 @@ EXPORT_SYMBOL(phy_detach);
 int phy_suspend(struct phy_device *phydev)
 {
        struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver);
-       struct ethtool_wolinfo wol;
+       struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
 
        /* If the device has WOL enabled, we cannot suspend the PHY */
-       wol.cmd = ETHTOOL_GWOL;
        phy_ethtool_get_wol(phydev, &wol);
        if (wol.wolopts)
                return -EBUSY;