Index: uspace/drv/bus/usb/uhci/utils/malloc32.h
===================================================================
--- uspace/drv/bus/usb/uhci/utils/malloc32.h	(revision d92c1ca83d148a7c2a672b0288f485c008eae96c)
+++ uspace/drv/bus/usb/uhci/utils/malloc32.h	(revision a3fcfbab8ada7658810ed4966e92d5dc1f3cfec7)
@@ -99,7 +99,7 @@
 static inline void * get_page(void)
 {
-	void *address = as_area_create((void *) -1, UHCI_REQUIRED_PAGE_SIZE,
+	void *address = as_area_create(AS_AREA_ANY, UHCI_REQUIRED_PAGE_SIZE,
 	    AS_AREA_READ | AS_AREA_WRITE);
-	if (address == (void *) -1)
+	if (address == AS_MAP_FAILED)
 		return NULL;
 	
Index: uspace/drv/bus/usb/usbmast/main.c
===================================================================
--- uspace/drv/bus/usb/usbmast/main.c	(revision d92c1ca83d148a7c2a672b0288f485c008eae96c)
+++ uspace/drv/bus/usb/usbmast/main.c	(revision a3fcfbab8ada7658810ed4966e92d5dc1f3cfec7)
@@ -302,5 +302,5 @@
 	
 	(void) async_share_out_finalize(callid, &comm_buf);
-	if (comm_buf == (void *) -1) {
+	if (comm_buf == AS_MAP_FAILED) {
 		async_answer_0(callid, EHANGUP);
 		return;