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| author | Peter Zijlstra <peterz@infradead.org> | 2018-04-30 12:00:11 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-05-02 16:10:40 +0200 |
| commit | 5b9e886a4af97574ca3ce1147f35545da0e7afc7 (patch) | |
| tree | f21241809c135be8938c5d562b8b0c30d5a40042 /kernel/time/clocksource.c | |
| parent | 2aae7bcfa4104b770e6f612356adb8d66c6144d6 (diff) | |
| download | lwn-5b9e886a4af97574ca3ce1147f35545da0e7afc7.tar.gz lwn-5b9e886a4af97574ca3ce1147f35545da0e7afc7.zip | |
clocksource: Initialize cs->wd_list
A number of places relies on list_empty(&cs->wd_list), however the
list_head does not get initialized. Do so upon registration, such that
thereafter it is possible to rely on list_empty() correctly reflecting
the list membership status.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Diego Viola <diego.viola@gmail.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: stable@vger.kernel.org
Cc: len.brown@intel.com
Cc: rjw@rjwysocki.net
Cc: rui.zhang@intel.com
Link: https://lkml.kernel.org/r/20180430100344.472662715@infradead.org
Diffstat (limited to 'kernel/time/clocksource.c')
| -rw-r--r-- | kernel/time/clocksource.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index c3d2b94723dc..935f39eb8aac 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -332,6 +332,8 @@ static void clocksource_resume_watchdog(void) static void clocksource_enqueue_watchdog(struct clocksource *cs) { + INIT_LIST_HEAD(&cs->wd_list); + if (cs->flags & CLOCK_SOURCE_MUST_VERIFY) { /* cs is a clocksource to be watched. */ list_add(&cs->wd_list, &watchdog_list); |