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/net/tipc/dbg.c b/net/tipc/dbg.c
index 1885a7e..6569d45 100644
--- a/net/tipc/dbg.c
+++ b/net/tipc/dbg.c
@@ -134,7 +134,7 @@
 
 int tipc_printbuf_empty(struct print_buf *pb)
 {
-	return (!pb->buf || (pb->crs == pb->buf));
+	return !pb->buf || (pb->crs == pb->buf);
 }
 
 /**
@@ -169,7 +169,7 @@
 			tipc_printf(pb, err);
 		}
 	}
-	return (pb->crs - pb->buf + 1);
+	return pb->crs - pb->buf + 1;
 }
 
 /**