Plug a memory leak

bc4c609e · Silas Boyd-Wickizer · 81f18719 · bc4c609e
--- a/vm.c
+++ b/vm.c
@@ -334,6 +334,7 @@ vmap_free(void *p)
  m->pml4 = 0;
  m->alloc = 0;
  destroylock(&m->lock);
+  kmfree(m);
 }

 // Does any vma overlap start..start+len?