kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &pit->speaker_dev);
kvm_pit_set_reinject(pit, false);
hrtimer_cancel(&pit->pit_state.timer);
kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &pit->speaker_dev);
kvm_pit_set_reinject(pit, false);
hrtimer_cancel(&pit->pit_state.timer);