As of 81cfe44b1e, miPointerSetPosition now
returns the screen pointer of the device. This broke floating slave devices,
as soon as a motion event was submitted, miPointerSetPosition returned NULL,
crashing the server.
dev->coreEvents is only false if the device is a floating slave, in which
case it has a sprite.
X.Org Bug 53568 <http://bugs.freedesktop.org/show_bug.cgi?id=53568>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>