We can't use "input" anymore after calling input_unregister_device().
The call to input_free_device() is a double free.  The normal way to
deal with this is to make input_register_device() the last function
called in the function.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NLen Brown <len.brown@intel.com>