Merge branch 'pm-assorted'

* pm-assorted:
  PM / QoS: Add pm_qos and dev_pm_qos to events-power.txt
  PM / QoS: Add dev_pm_qos_request tracepoints
  PM / QoS: Add pm_qos_request tracepoints
  PM / QoS: Add pm_qos_update_target/flags tracepoints
  PM / QoS: Update Documentation/power/pm_qos_interface.txt
  PM / Sleep: Print last wakeup source on failed wakeup_count write
  PM / QoS: correct the valid range of pm_qos_class
  PM / wakeup: Adjust messaging for wake events during suspend
  PM / Runtime: Update .runtime_idle() callback documentation
  PM / Runtime: Rework the "runtime idle" helper routine
  PM / Hibernate: print physical addresses consistently with other parts of kernel

1 files changed, 2 insertions, 7 deletions

diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index 5f4765a7a5c5..5dfcf3bae23a 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -1248,13 +1248,8 @@ static int serial_hsu_resume(struct pci_dev *pdev)
 #ifdef CONFIG_PM_RUNTIME
 static int serial_hsu_runtime_idle(struct device *dev)
 {
-        int err;
-
-        err = pm_schedule_suspend(dev, 500);
-        if (err)
-                return -EBUSY;
-
-        return 0;
+        pm_schedule_suspend(dev, 500);
+        return -EBUSY;
 }
 
 static int serial_hsu_runtime_suspend(struct device *dev)