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authorPeter Zijlstra <peterz@infradead.org>2018-04-30 12:00:11 +0200
committerThomas Gleixner <tglx@linutronix.de>2018-05-02 16:10:40 +0200
commit5b9e886a4af97574ca3ce1147f35545da0e7afc7 (patch)
treef21241809c135be8938c5d562b8b0c30d5a40042 /kernel/time
parent2aae7bcfa4104b770e6f612356adb8d66c6144d6 (diff)
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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')
-rw-r--r--kernel/time/clocksource.c2
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);