Index: uspace/app/tester/hw/serial/serial1.c
===================================================================
--- uspace/app/tester/hw/serial/serial1.c	(revision f30052384594e837924dcd017e96ea8752aa676f)
+++ uspace/app/tester/hw/serial/serial1.c	(revision a53ed3a8097360ccf174e8d94fb407db919eb66a)
@@ -56,5 +56,5 @@
 	serial_t *serial;
 	chardev_t *chardev;
-	int rc;
+	errno_t rc;
 	size_t nread;
 	size_t nwritten;
@@ -75,5 +75,5 @@
 	
 	service_id_t svc_id;
-	int res = loc_service_get_id("devices/\\hw\\pci0\\00:01.0\\com1\\a",
+	errno_t res = loc_service_get_id("devices/\\hw\\pci0\\00:01.0\\com1\\a",
 	    &svc_id, IPC_FLAG_BLOCKING);
 	if (res != EOK)