Fixed a nasty bug in B_DestroyAllClasses() which could allow anyone t…

…o easily crash their system via the console.
skyjake · Mar 10, 2008 · 6576414 · 6576414
1 parent 3940854
commit 6576414
Showing 1 changed file with 8 additions and 5 deletions.
diff --git a/doomsday/engine/portable/src/b_class.c b/doomsday/engine/portable/src/b_class.c
@@ -65,14 +65,17 @@ static bclass_t** bindClasses;
  */
 void B_DestroyAllClasses(void)
 {
-    int     i;
+    int                 i;
 
-    for(i = 0; i < bindClassCount; ++i)
+    if(bindClasses)
     {
-        B_DestroyClass(bindClasses[i]);
+        for(i = 0; i < bindClassCount; ++i)
+        {
+            B_DestroyClass(bindClasses[i]);
+        }
+        M_Free(bindClasses);
     }
-    M_Free(bindClasses);
-    bindClasses = 0;
+    bindClasses = NULL;
     bindClassCount = 0;
 }