From e172c89783326e2378e4793ff31a0f44210c5534 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Sat, 11 Sep 2010 08:41:00 +0000
Subject: xserver git update 11/9/2010

---
 xorg-server/dix/eventconvert.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'xorg-server/dix/eventconvert.c')

diff --git a/xorg-server/dix/eventconvert.c b/xorg-server/dix/eventconvert.c
index aa72708ed..e891f0698 100644
--- a/xorg-server/dix/eventconvert.c
+++ b/xorg-server/dix/eventconvert.c
@@ -102,6 +102,15 @@ EventToCore(InternalEvent *event, xEvent *core)
     switch(event->any.type)
     {
         case ET_Motion:
+            {
+                DeviceEvent *e = &event->device_event;
+                /* Don't create core motion event if neither x nor y are
+                 * present */
+                if (!BitIsOn(e->valuators.mask, 0) &&
+                    !BitIsOn(e->valuators.mask, 1))
+                    return BadMatch;
+            }
+            /* fallthrough */
         case ET_ButtonPress:
         case ET_ButtonRelease:
         case ET_KeyPress:
-- 
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