Index: include/mm/heap.h
===================================================================
--- include/mm/heap.h	(revision f761f1eb635bfe9a5deaf70a0f0a51aa8d2f5f22)
+++ include/mm/heap.h	(revision 6ba143dce31ac1490fdc2b36456012f4baadf10c)
@@ -41,7 +41,7 @@
 };
 
-extern void heap_init(__address heap, int size);
+extern void heap_init(__address heap, __u32 size);
 
-extern void *malloc(int size);
+extern void *malloc(size_t size);
 extern void free(void *ptr);