[hbirr] 16669: Merge r16633:16634 from trunk. This fix prevents from corrupting the message queues.

Merge r16633:16634 from trunk. This fix prevents from corrupting the
message queues.
Modified:
branches/ros-branch-0_2_7/reactos/subsys/win32k/ntuser/msgqueue.c
  _____  

Modified:
branches/ros-branch-0_2_7/reactos/subsys/win32k/ntuser/msgqueue.c
--- branches/ros-branch-0_2_7/reactos/subsys/win32k/ntuser/msgqueue.c
2005-07-20 17:06:53 UTC (rev 16668)
+++ branches/ros-branch-0_2_7/reactos/subsys/win32k/ntuser/msgqueue.c
2005-07-20 17:31:18 UTC (rev 16669)
@@ -1423,6 +1423,13 @@

       CurrentSentMessage = CONTAINING_RECORD(CurrentEntry,
USER_SENT_MESSAGE,
                                              ListEntry);
 
+      IntLockMessageQueue(CurrentSentMessage->SenderQueue);
+      /* remove the message from the dispatching list */
+      if(CurrentSentMessage->DispatchingListEntry.Flink != NULL)
+      {
+        RemoveEntryList(&CurrentSentMessage->DispatchingListEntry);
+      }
+
       DPRINT("Notify the sender, the thread has been terminated while
dispatching a message!\n");
 
       /* wake the sender's thread */
@@ -1430,7 +1437,8 @@
       {
         KeSetEvent(CurrentSentMessage->CompletionEvent,
IO_NO_INCREMENT, FALSE);
       }
-
+      IntUnLockMessageQueue(CurrentSentMessage->SenderQueue);
+      
       /* dereference our and the sender's message queue */
       IntDereferenceMessageQueue(MessageQueue);
       IntDereferenceMessageQueue(CurrentSentMessage->SenderQueue);