From 75dece08fb72803d5116e6776e9f1534ff20e37b Mon Sep 17 00:00:00 2001
From: "Zephaniah E. Hull" <warp@agamemnon.b5>
Date: Mon, 4 Jun 2007 09:09:20 -0400
Subject: [PATCH] xf86PostMotionEvents[P] calls xf86SendDragEvents,
 xf86SendDragEvents unconditionally checks device->button->buttonsDown.

Let's make it possible to have a device with motion, but no buttons.

Without segfaulting.
---
 hw/xfree86/common/xf86Xinput.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/xfree86/common/xf86Xinput.c b/hw/xfree86/common/xf86Xinput.c
index 207e792cf..543002000 100644
--- a/hw/xfree86/common/xf86Xinput.c
+++ b/hw/xfree86/common/xf86Xinput.c
@@ -101,7 +101,7 @@ xf86SendDragEvents(DeviceIntPtr	device)
 {
     LocalDevicePtr local = (LocalDevicePtr) device->public.devicePrivate;
     
-    if (device->button->buttonsDown > 0)
+    if (device->button && device->button->buttonsDown > 0)
         return (local->flags & XI86_SEND_DRAG_EVENTS);
     else
         return (TRUE);