From 62efc3951a96648cf975302aa6651cb67b87fa64 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter@cs.unisa.edu.au>
Date: Fri, 6 Jul 2007 17:00:20 +0930
Subject: [PATCH] DeliverGrabbedEvent: stop segfault when gemask == NULL.

---
 dix/events.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dix/events.c b/dix/events.c
index 9a6ab33f6..8fcbec76a 100644
--- a/dix/events.c
+++ b/dix/events.c
@@ -3283,7 +3283,7 @@ DeliverGrabbedEvent(xEvent *xE, DeviceIntPtr thisDev,
                 xGenericEvent* ge = ((xGenericEvent*)xE);
                 GenericMaskPtr    gemask = grab->genericMasks;
 
-                if (!gemask->eventMask[GEEXTIDX(ge)])
+                if (!gemask || !gemask->eventMask[GEEXTIDX(ge)])
                     return;
 
                 if (GEEventFill(xE))