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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-08-20 11:46:46 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-08-20 11:46:46 +0200 |
| commit | 4e2a809703e2b2300438a425b0a3f2013b55fcc6 (patch) | |
| tree | b3233970c706fdd93f9d381c1f48186fe0f8a252 /kernel/time | |
| parent | 3cf294962df8fcde710eb5e762e0929e2ba49947 (diff) | |
| parent | 47b4a457e4cc816b3fdd2ee55c65fda8ea6de051 (diff) | |
| download | linux-4e2a809703e2b2300438a425b0a3f2013b55fcc6.tar.bz2 | |
Merge branch 'fortglx/4.14/time' of https://git.linaro.org/people/john.stultz/linux into timers/core
Pull timekeepig updates from John Stultz
- kselftest improvements
- Use the proper timekeeper in the debug code
- Prevent accessing an unavailable wakeup source in the alarmtimer sysfs
interface.
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/alarmtimer.c | 11 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 2 |
2 files changed, 10 insertions, 3 deletions
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 0b8ff7d257ea..73a2b476e59f 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -56,9 +56,9 @@ static ktime_t freezer_delta; static DEFINE_SPINLOCK(freezer_delta_lock); #endif +#ifdef CONFIG_RTC_CLASS static struct wakeup_source *ws; -#ifdef CONFIG_RTC_CLASS /* rtc timer and device for setting alarm wakeups at suspend */ static struct rtc_timer rtctimer; static struct rtc_device *rtcdev; @@ -89,6 +89,7 @@ static int alarmtimer_rtc_add_device(struct device *dev, { unsigned long flags; struct rtc_device *rtc = to_rtc_device(dev); + struct wakeup_source *__ws; if (rtcdev) return -EBUSY; @@ -98,13 +99,20 @@ static int alarmtimer_rtc_add_device(struct device *dev, if (!device_may_wakeup(rtc->dev.parent)) return -1; + __ws = wakeup_source_register("alarmtimer"); + spin_lock_irqsave(&rtcdev_lock, flags); if (!rtcdev) { rtcdev = rtc; /* hold a reference so it doesn't go away */ get_device(dev); + ws = __ws; + __ws = NULL; } spin_unlock_irqrestore(&rtcdev_lock, flags); + + wakeup_source_unregister(__ws); + return 0; } @@ -860,7 +868,6 @@ static int __init alarmtimer_init(void) error = PTR_ERR(pdev); goto out_drv; } - ws = wakeup_source_register("alarmtimer"); return 0; out_drv: diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index cedafa008de5..8f5866981883 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -2066,7 +2066,7 @@ void update_wall_time(void) goto out; /* Do some additional sanity checking */ - timekeeping_check_update(real_tk, offset); + timekeeping_check_update(tk, offset); /* * With NO_HZ we may have to accumulate many cycle_intervals |