Fixed potential segfault in P_IterateThinkers.

skyjake · Jun 25, 2008 · 0c09bc2 · 0c09bc2
1 parent ba1c468
commit 0c09bc2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doomsday/engine/portable/src/p_think.c b/doomsday/engine/portable/src/p_think.c
@@ -115,7 +115,7 @@ boolean P_IterateThinkers(think_t type,
     thinker_t*          th, *next;
 
     th = thinkerCap.next;
-    while(th != &thinkerCap)
+    while(th != &thinkerCap && th)
     {
 #ifdef FAKE_MEMORY_ZONE
         assert(th->next != NULL);