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/pcnet32.c b/drivers/net/pcnet32.c
index c200c282..aee3bb0 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -376,7 +376,7 @@
 static int pcnet32_wio_check(unsigned long addr)
 {
 	outw(88, addr + PCNET32_WIO_RAP);
-	return (inw(addr + PCNET32_WIO_RAP) == 88);
+	return inw(addr + PCNET32_WIO_RAP) == 88;
 }
 
 static struct pcnet32_access pcnet32_wio = {
@@ -431,7 +431,7 @@
 static int pcnet32_dwio_check(unsigned long addr)
 {
 	outl(88, addr + PCNET32_DWIO_RAP);
-	return ((inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88);
+	return (inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88;
 }
 
 static struct pcnet32_access pcnet32_dwio = {