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>
diff --git a/drivers/net/ll_temac_main.c b/drivers/net/ll_temac_main.c
index 874ee01..8762dcb 100644
--- a/drivers/net/ll_temac_main.c
+++ b/drivers/net/ll_temac_main.c
@@ -494,7 +494,7 @@
 	lp->options |= options;
 	mutex_unlock(&lp->indirect_mutex);
 
-	return (0);
+	return 0;
 }
 
 /* Initialize temac */