Index: uspace/drv/ohci/root_hub.c
===================================================================
--- uspace/drv/ohci/root_hub.c	(revision 63d4d4fd3e88e94da562806fa61e80068520ae4c)
+++ uspace/drv/ohci/root_hub.c	(revision e89bb50a6a074c8fe7ce4b137c44f2130396f599)
@@ -505,5 +505,5 @@
 	mask = port_status_change_mask;
 	for (port = 1; port <= instance->port_count; ++port) {
-		if (mask & instance->registers->rh_port_status[port - 1] != 0) {
+		if ((mask & instance->registers->rh_port_status[port - 1]) != 0) {
 
 			bitmap[(port) / 8] += 1 << (port % 8);