dix: don't overwrite proximity/focus classes

InitPointerClassDeviceStruct/InitKeyboardDeviceStruct allocate a
proximity/focus class, respectively. If a driver calls
InitFocusClassDeviceStruct or InitProximityClassDeviceStruct beforehand,
the previously allocated class is overwritten, leaking the memory.

Neither takes a parameter other than the device, so we can simply skip
initialising it if we already have one.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>

0 files changed, 0 insertions, 0 deletions