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-rw-r--r--drivers/cpuidle/cpuidle.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index a55e68f2cfc8..09d05ab262be 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -140,12 +140,14 @@ int cpuidle_idle_call(void)
return 0;
}
- trace_cpu_idle_rcuidle(next_state, dev->cpu);
-
broadcast = !!(drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP);
- if (broadcast)
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
+ if (broadcast &&
+ clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu))
+ return -EBUSY;
+
+
+ trace_cpu_idle_rcuidle(next_state, dev->cpu);
if (cpuidle_state_is_coupled(dev, drv, next_state))
entered_state = cpuidle_enter_state_coupled(dev, drv,
@@ -153,11 +155,11 @@ int cpuidle_idle_call(void)
else
entered_state = cpuidle_enter_state(dev, drv, next_state);
+ trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
+
if (broadcast)
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
- trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
-
/* give the governor an opportunity to reflect on the outcome */
if (cpuidle_curr_governor->reflect)
cpuidle_curr_governor->reflect(dev, entered_state);