.

wcfs/internal/wcfs_virtmem.cpp

@@ -488,7 +488,10 @@ void _Mapping::unmap() {
     _Mapping* mmap = this;
 
     // XXX locking
-    mm::unmap(mmap->mem_start, mmap->mem_stop - mmap->mem_start);  // XXX err?
+
+    error err = mm::unmap(mmap->mem_start, mmap->mem_stop - mmap->mem_start);
+    if (err != nil)
+        panic("TODO");  // XXX
     mmap->mem_start = NULL;
     mmap->mem_stop  = NULL;
     // XXX clear other fields?