net: phy: Make phy_ethtool_ksettings_get return void

Make return value void since function never return meaningfull value

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 16808e4..743170d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -273,7 +273,6 @@ static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 	struct phy_device *phy = dev->phydev;
-	int rc;
 
 	if (priv->hw->pcs & STMMAC_PCS_RGMII ||
 	    priv->hw->pcs & STMMAC_PCS_SGMII) {
@@ -364,8 +363,8 @@ static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
 		"link speed / duplex setting\n", dev->name);
 		return -EBUSY;
 	}
-	rc = phy_ethtool_ksettings_get(phy, cmd);
-	return rc;
+	phy_ethtool_ksettings_get(phy, cmd);
+	return 0;
 }
 
 static int