Peter Hutterer 2416ee4a01 dix: avoid NULL-pointer dereference on button-only devices (#38313) ...

And for such devices simply take the last.valuators[] which must be valid at
all times anyway. UpdateSlaveDeviceCoords takes care of that.

X.Org Bug 38313 <http://bugs.freedesktop.org/show_bug.cgi?id=38313>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>

2012-02-27 13:01:45 +10:00

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