*/
int tick_check_broadcast_device(struct clock_event_device *dev)
{
- if ((tick_broadcast_device.evtdev &&
+ struct clock_event_device *cur = tick_broadcast_device.evtdev;
+
+ if ((dev->features & CLOCK_EVT_FEAT_DUMMY) ||
+ (tick_broadcast_device.evtdev &&
tick_broadcast_device.evtdev->rating >= dev->rating) ||
(dev->features & CLOCK_EVT_FEAT_C3STOP))
return 0;
- clockevents_exchange_device(NULL, dev);
+ clockevents_exchange_device(tick_broadcast_device.evtdev, dev);
+ if (cur)
+ cur->event_handler = clockevents_handle_noop;
tick_broadcast_device.evtdev = dev;
if (!cpumask_empty(tick_get_broadcast_mask()))
tick_broadcast_start_periodic(dev);