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Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull timer fix from Thomas Gleixner:
 "A single bugfix which prevents that a non functional timer device is
  selected to provide the fallback device, which is supposed to serve
  timer interrupts on behalf of non functional devices ..."

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clockevents: Don't allow dummy broadcast timers
This commit is contained in:
Linus Torvalds 2013-03-25 18:03:34 -07:00
commit a12183c627
1 changed files with 2 additions and 1 deletions
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3
kernel/time/tick-broadcast.c
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@ -67,7 +67,8 @@ static void tick_broadcast_start_periodic(struct clock_event_device *bc)
*/ */
int tick_check_broadcast_device(struct clock_event_device *dev) int tick_check_broadcast_device(struct clock_event_device *dev)
{ {
if ((tick_broadcast_device.evtdev && if ((dev->features & CLOCK_EVT_FEAT_DUMMY) ||
(tick_broadcast_device.evtdev &&
tick_broadcast_device.evtdev->rating >= dev->rating) || tick_broadcast_device.evtdev->rating >= dev->rating) ||
(dev->features & CLOCK_EVT_FEAT_C3STOP)) (dev->features & CLOCK_EVT_FEAT_C3STOP))
return 0; return 0;