Index: uspace/lib/c/generic/as.c
===================================================================
--- uspace/lib/c/generic/as.c	(revision d5c1051faf4391647834d99babdd4a44ee5d9700)
+++ uspace/lib/c/generic/as.c	(revision a53ed3a8097360ccf174e8d94fb407db919eb66a)
@@ -74,7 +74,7 @@
  *
  */
-int as_area_resize(void *address, size_t size, unsigned int flags)
+errno_t as_area_resize(void *address, size_t size, unsigned int flags)
 {
-	return (int) __SYSCALL3(SYS_AS_AREA_RESIZE, (sysarg_t) address,
+	return (errno_t) __SYSCALL3(SYS_AS_AREA_RESIZE, (sysarg_t) address,
 	    (sysarg_t) size, (sysarg_t) flags);
 }
@@ -88,7 +88,7 @@
  *
  */
-int as_area_destroy(void *address)
+errno_t as_area_destroy(void *address)
 {
-	return (int) __SYSCALL1(SYS_AS_AREA_DESTROY, (sysarg_t) address);
+	return (errno_t) __SYSCALL1(SYS_AS_AREA_DESTROY, (sysarg_t) address);
 }
 
@@ -102,7 +102,7 @@
  *
  */
-int as_area_change_flags(void *address, unsigned int flags)
+errno_t as_area_change_flags(void *address, unsigned int flags)
 {
-	return (int) __SYSCALL2(SYS_AS_AREA_CHANGE_FLAGS, (sysarg_t) address,
+	return (errno_t) __SYSCALL2(SYS_AS_AREA_CHANGE_FLAGS, (sysarg_t) address,
 	    (sysarg_t) flags);
 }
@@ -117,7 +117,7 @@
  *
  */
-int as_get_physical_mapping(const void *virt, uintptr_t *phys)
+errno_t as_get_physical_mapping(const void *virt, uintptr_t *phys)
 {
-	return (int) __SYSCALL2(SYS_PAGE_FIND_MAPPING, (sysarg_t) virt,
+	return (errno_t) __SYSCALL2(SYS_PAGE_FIND_MAPPING, (sysarg_t) virt,
 	    (sysarg_t) phys);
 }