From 465a9bb96e8a90e53e655b3245e22910201786d7 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@redhat.com>
Date: Fri, 8 Aug 2008 17:37:06 +0930
Subject: [PATCH] dix: don't try to create events if we don't have a screen.
 #16898

A NULL screen may happen during server shutdown, when the output has been shut
down but the devices still generate events.

X.Org Bug 16898 <http://bugs.freedesktop.org/show_bug.cgi?id=16898>
---
 dix/getevents.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dix/getevents.c b/dix/getevents.c
index 61252c3d6..718b8ff50 100644
--- a/dix/getevents.c
+++ b/dix/getevents.c
@@ -814,6 +814,8 @@ GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
     ms = GetTimeInMillis(); /* before pointer update to help precision */
 
     /* Sanity checks. */
+    if (!scr) /* can happen during server shutdown */
+        return 0;
     if (type != MotionNotify && type != ButtonPress && type != ButtonRelease)
         return 0;
     if (type != MotionNotify && !pDev->button)