mem: correct return type of unmap

2 files changed, 6 insertions, 2 deletions

diff --git a/mem/errors.h b/mem/errors.h
index e926214..3bd740c 100644
--- a/mem/errors.h
+++ b/mem/errors.h
@@ -6,7 +6,11 @@ enum mem_error {
 	
 	/* Returned when an implementation does not support
 	   one of the vmap operations */
-	MEM_VMAP_UNSUPPORTED
+	MEM_VMAP_UNSUPPORTED,
+
+	/* Returned when a mapping that overlaps with another
+	   was requested */
+	MEM_VMAP_OVERLAPPING
 };
 
 #endif
\ No newline at end of file
diff --git a/mem/vmap.h b/mem/vmap.h
index 4e1816c..7f8b8bb 100644
--- a/mem/vmap.h
+++ b/mem/vmap.h
@@ -7,7 +7,7 @@ typedef struct mem_vmap MemVmap;
 
 typedef usize (*MemVmapTranslate)(MemVmap *, usize);
 typedef int (*MemVmapMap)(MemVmap *, usize, usize, usize, int);
-typedef int (*MemVmapUnmap)(MemVmap *, usize, usize);
+typedef void (*MemVmapUnmap)(MemVmap *, usize, usize);
 typedef void (*MemVmapSwitchTo)(MemVmap *);
 
 /* Structure abstracting the memory mapping facilities of