drivers/net: return operator cleanup

Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ll_temac_main.c

@@ -494,7 +494,7 @@ static u32 temac_setoptions(struct net_device *ndev, u32 options)
 	lp->options |= options;
 	mutex_unlock(&lp->indirect_mutex);
 
-	return (0);
+	return 0;
 }
 
 /* Initialize temac */