Index: kernel/genarch/src/ddi/ddi-bitmap.c
===================================================================
--- kernel/genarch/src/ddi/ddi-bitmap.c	(revision 46577995860f76c247274a43eb6f67b944f0d3a8)
+++ kernel/genarch/src/ddi/ddi-bitmap.c	(revision 36df27ebb72758daf4d2179e70f231ac0e059a83)
@@ -142,5 +142,5 @@
 	task->arch.iomapver++;
 	
-	return 0;
+	return EOK;
 }
 
Index: kernel/genarch/src/ddi/ddi-dummy.c
===================================================================
--- kernel/genarch/src/ddi/ddi-dummy.c	(revision 46577995860f76c247274a43eb6f67b944f0d3a8)
+++ kernel/genarch/src/ddi/ddi-dummy.c	(revision 36df27ebb72758daf4d2179e70f231ac0e059a83)
@@ -50,5 +50,5 @@
 errno_t ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
 {
-	return 0;
+	return EOK;
 }
 
@@ -65,5 +65,5 @@
 errno_t ddi_iospace_disable_arch(task_t *task, uintptr_t ioaddr, size_t size)
 {
-	return 0;
+	return EOK;
 }