diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2017-09-01 14:29:56 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-25 14:26:30 +0100 |
| commit | 80879ecb4624d58e10cfe03550056c34483187a5 (patch) | |
| tree | c3672e5133089a2a212b6f4799fa2f8a5cf21de1 /drivers/cpuidle/cpuidle.c | |
| parent | 051c3df7d6b8d5f1948503637c69fc939db69035 (diff) | |
cpuidle: fix broadcast control when broadcast can not be entered
[ Upstream commit f187851b9b4a76952b1158b86434563dd2031103 ]
When failing to enter broadcast timer mode for an idle state that
requires it, a new state is selected that does not require broadcast,
but the broadcast variable remains set. This causes
tick_broadcast_exit to be called despite not having entered broadcast
mode.
This causes the WARN_ON_ONCE(!irqs_disabled()) to trigger in some
cases. It does not appear to cause problems for code today, but seems
to violate the interface so should be fixed.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/cpuidle/cpuidle.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 484cc8909d5c..ed4df58a855e 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -208,6 +208,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv, return -EBUSY; } target_state = &drv->states[index]; + broadcast = false; } /* Take note of the planned idle state. */ |