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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-25 18:03:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-25 18:03:34 -0700
commita12183c62717ac4579319189a00f5883a18dff08 (patch)
treecad09026a6987c710f1bbfc38730f5e0f0d0796d /kernel
parent53b680924800ad6c67f7e54ca7d5bdc4859d2318 (diff)
parenta7dc19b8652c862d5b7c4d2339bd3c428bd29c4a (diff)
downloadlwn-a12183c62717ac4579319189a00f5883a18dff08.tar.gz
lwn-a12183c62717ac4579319189a00f5883a18dff08.zip
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
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
Diffstat (limited to 'kernel')
-rw-r--r--kernel/time/tick-broadcast.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 2fb8cb88df8d..7f32fe0e52cd 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -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)
{
- if ((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;