1 files changed, 8 insertions, 1 deletions

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 935f39eb8aac..605656df16c4 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -152,12 +152,19 @@ static void __clocksource_unstable(struct clocksource *cs)
         cs->flags &= ~(CLOCK_SOURCE_VALID_FOR_HRES | CLOCK_SOURCE_WATCHDOG);
         cs->flags |= CLOCK_SOURCE_UNSTABLE;
 
-        if (list_empty(&cs->list))
+        /*
+         * If the clocksource is registered clocksource_watchdog_kthread() will
+         * re-rate and re-select.
+         */
+        if (list_empty(&cs->list)) {
+                cs->rating = 0;
                 return;
+        }
 
         if (cs->mark_unstable)
                 cs->mark_unstable(cs);
 
+        /* kick clocksource_watchdog_kthread() */
         if (finished_booting)
                 schedule_work(&watchdog_work);
 }