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-rw-r--r--kernel/time/clockevents.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 4237e0744e26..16c027e9cc73 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -280,17 +280,22 @@ static int clockevents_program_min_delta(struct clock_event_device *dev)
static int clockevents_program_min_delta(struct clock_event_device *dev)
{
unsigned long long clc;
- int64_t delta;
+ int64_t delta = 0;
+ int i;
- delta = dev->min_delta_ns;
- dev->next_event = ktime_add_ns(ktime_get(), delta);
+ for (i = 0; i < 10; i++) {
+ delta += dev->min_delta_ns;
+ dev->next_event = ktime_add_ns(ktime_get(), delta);
- if (clockevent_state_shutdown(dev))
- return 0;
+ if (clockevent_state_shutdown(dev))
+ return 0;
- dev->retries++;
- clc = ((unsigned long long) delta * dev->mult) >> dev->shift;
- return dev->set_next_event((unsigned long) clc, dev);
+ dev->retries++;
+ clc = ((unsigned long long) delta * dev->mult) >> dev->shift;
+ if (dev->set_next_event((unsigned long) clc, dev) == 0)
+ return 0;
+ }
+ return -ETIME;
}
#endif /* CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST */