[PATCH xts] XI/ChangePointerDevice: Fix double-free

[Peter Harris]

XCloseDevice frees the device parameter, even if it references an
invalid device. Therefore, the device parameter must have been malloc'd.

Signed-off-by: Peter Harris <pharris at opentext.com>
---
 xts5/XI/ChangePointerDevice.m |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/xts5/XI/ChangePointerDevice.m b/xts5/XI/ChangePointerDevice.m
index d203f6e..332a9d8 100644
--- a/xts5/XI/ChangePointerDevice.m
+++ b/xts5/XI/ChangePointerDevice.m
@@ -372,7 +372,7 @@ unsigned char bmap[8];
 XDeviceResolutionControl dctl;
 XEventClass devicemotionnotifyclass;
 XEvent ev;
-XDevice bogus;
+XDevice bogus, *copy;
 
 
 	if (!Setup_Extension_DeviceInfo(ValMask) || NumValuators < 2)
@@ -415,8 +415,10 @@ XDevice bogus;
 	else
 		FAIL;
 
+	copy = malloc(sizeof(bogus));
+	memcpy(copy, &bogus, sizeof(bogus));
 	device = &bogus;
-	XCloseDevice(display, device);
+	XCloseDevice(display, copy);
 	XSync(display,0);
 	if (geterr() == baddevice)
 		{
-- 
1.7.10.4