PM / Wakeup: Make pm_save_wakeup_count() work as documented

[mirror_ubuntu-artful-kernel.git] / drivers / base / power / wakeup.c

diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index e5e73b5efc80148a70e92ab6620a5c61b6b75b36..07e08c3aece476f60a7cbee4a9dc78f95cd9fa0a 100644 (file)
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -616,25 +616,25 @@ bool pm_get_wakeup_count(unsigned int *count)
  *
  * If @count is equal to the current number of registered wakeup events and the
  * current number of wakeup events being processed is zero, store @count as the
- * old number of registered wakeup events to be used by pm_check_wakeup_events()
- * and return true.  Otherwise return false.
+ * old number of registered wakeup events for pm_check_wakeup_events(), enable
+ * wakeup events detection and return 'true'.  Otherwise disable wakeup events
+ * detection and return 'false'.
  */
 bool pm_save_wakeup_count(unsigned int count)
 {
        unsigned int cnt, inpr;
-       bool ret = false;
 
+       events_check_enabled = false;
        spin_lock_irq(&events_lock);
        split_counters(&cnt, &inpr);
        if (cnt == count && inpr == 0) {
                saved_count = count;
                events_check_enabled = true;
-               ret = true;
        }
        spin_unlock_irq(&events_lock);
-       if (!ret)
+       if (!events_check_enabled)
                pm_wakeup_update_hit_counts();
-       return ret;
+       return events_check_enabled;
 }
 
 static struct dentry *wakeup_sources_stats_dentry;