lxt: simplify lxt97[01]_config_intr()

Both these functions declare the 'err' local variables for no good reason,
get rid of them.
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/phy/lxt.c

@@ -80,14 +80,10 @@ static int lxt970_ack_interrupt(struct phy_device *phydev)
 
 static int lxt970_config_intr(struct phy_device *phydev)
 {
-	int err;
-
 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
-		err = phy_write(phydev, MII_LXT970_IER, MII_LXT970_IER_IEN);
+		return phy_write(phydev, MII_LXT970_IER, MII_LXT970_IER_IEN);
 	else
-		err = phy_write(phydev, MII_LXT970_IER, 0);
-
-	return err;
+		return phy_write(phydev, MII_LXT970_IER, 0);
 }
 
 static int lxt970_config_init(struct phy_device *phydev)
@@ -112,14 +108,10 @@ static int lxt971_ack_interrupt(struct phy_device *phydev)
 
 static int lxt971_config_intr(struct phy_device *phydev)
 {
-	int err;
-
 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
-		err = phy_write(phydev, MII_LXT971_IER, MII_LXT971_IER_IEN);
+		return phy_write(phydev, MII_LXT971_IER, MII_LXT971_IER_IEN);
 	else
-		err = phy_write(phydev, MII_LXT971_IER, 0);
-
-	return err;
+		return phy_write(phydev, MII_LXT971_IER, 0);
 }
 
 /*