1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 05a17812d52..ff64d333e95 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -838,7 +838,7 @@ int acpi_processor_cst_has_changed (struct acpi_processor *pr)
 
         /* Fall back to the default idle loop */
         pm_idle = pm_idle_save;
-        synchronize_kernel();
+        synchronize_sched();  /* Relies on interrupts forcing exit from idle. */
 
         pr->flags.power = 0;
         result = acpi_processor_get_power_info(pr);