diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/tick-broadcast.c | 4 | ||||
| -rw-r--r-- | kernel/time/tick-common.c | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 7f32fe0e52c..90ad470ee8d 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -67,6 +67,8 @@ static void tick_broadcast_start_periodic(struct clock_event_device *bc) */ int tick_check_broadcast_device(struct clock_event_device *dev) { + 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) || @@ -74,6 +76,8 @@ int tick_check_broadcast_device(struct clock_event_device *dev) return 0; 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); diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index b1600a6973f..7076b3f53e8 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -323,6 +323,7 @@ static void tick_shutdown(unsigned int *cpup) */ dev->mode = CLOCK_EVT_MODE_UNUSED; clockevents_exchange_device(dev, NULL); + dev->event_handler = clockevents_handle_noop; td->evtdev = NULL; } raw_spin_unlock_irqrestore(&tick_device_lock, flags); |