From aec485f2dcc87b340759d67b60e7dee7931aaec5 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter@cs.unisa.edu.au>
Date: Thu, 24 Apr 2008 13:29:46 +0930
Subject: [PATCH] dix: NULL out WindowTable after freeing all the windows.

CloseDownDevices() tries to send PresenceNotify events. If the windows are
already freed, then we are accessing dangling pointers.
---
 dix/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dix/main.c b/dix/main.c
index db4347341..6d9dd3332 100644
--- a/dix/main.c
+++ b/dix/main.c
@@ -458,7 +458,10 @@ main(int argc, char *argv[], char *envp[])
 #endif
 
         config_fini();
+
+        memset(WindowTable, 0, MAXSCREENS * sizeof(WindowPtr));
 	CloseDownDevices();
+
 	for (i = screenInfo.numScreens - 1; i >= 0; i--)
 	{
 	    FreeScratchPixmapsForScreen(i);