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/tc35815.c b/drivers/net/tc35815.c
index 99e423a..b6eec8c 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -1167,7 +1167,7 @@
 static int tc35815_tx_full(struct net_device *dev)
 {
 	struct tc35815_local *lp = netdev_priv(dev);
-	return ((lp->tfd_start + 1) % TX_FD_NUM == lp->tfd_end);
+	return (lp->tfd_start + 1) % TX_FD_NUM == lp->tfd_end;
 }
 
 static void tc35815_restart(struct net_device *dev)