diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 55437f5e0c3a..bd6a7857ce05 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1430,6 +1430,8 @@ int acpi_processor_power_exit(struct acpi_processor *pr)
 		acpi_processor_registered--;
 		if (acpi_processor_registered == 0)
 			cpuidle_unregister_driver(&acpi_idle_driver);
+
+		kfree(dev);
 	}
 
 	pr->flags.power_setup_done = 0;