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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-02-22 17:46:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-02-22 17:46:30 -0800 |
| commit | ef4edb3ed830cbbb443de9906b8cf16dc0653a74 (patch) | |
| tree | a74890b5438197a0bba517c418bcaedc6c75e2fe /drivers/base | |
| parent | Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc (diff) | |
| parent | Merge branch 'pm-cpufreq-fixes' (diff) | |
Merge tag 'pm-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a regression in the PM-runtime framework introduced by the
recent switch-over of it to using hrtimers and a use-after-free
introduced by one of the recent changes in the scmi-cpufreq driver.
Specifics:
- Use hrtimer_try_to_cancel() instead of hrtimer_cancel() in the
PM-runtime framework to avoid a possible timer-related deadlock
introduced recently (Vincent Guittot).
- Reorder the scmi-cpufreq driver code to avoid accessing memory that
has just been freed (Yangtao Li)"
* tag 'pm-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM-runtime: Fix deadlock when canceling hrtimer
cpufreq: scmi: Fix use-after-free in scmi_cpufreq_exit()
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/runtime.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 0ea2139c50d8..ccd296dbb95c 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -95,7 +95,7 @@ static void __update_runtime_status(struct device *dev, enum rpm_status status) static void pm_runtime_deactivate_timer(struct device *dev) { if (dev->power.timer_expires > 0) { - hrtimer_cancel(&dev->power.suspend_timer); + hrtimer_try_to_cancel(&dev->power.suspend_timer); dev->power.timer_expires = 0; } } |