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/irda/vlsi_ir.h b/drivers/net/irda/vlsi_ir.h
index 3f24a1f3..d66fab8 100644
--- a/drivers/net/irda/vlsi_ir.h
+++ b/drivers/net/irda/vlsi_ir.h
@@ -595,7 +595,7 @@
 
 static inline int rd_is_active(struct ring_descr *rd)
 {
-	return ((rd->hw->rd_status & RD_ACTIVE) != 0);
+	return (rd->hw->rd_status & RD_ACTIVE) != 0;
 }
 
 static inline void rd_activate(struct ring_descr *rd)