Commit 2807bd18 authored May 26, 2014 by Aaron Lu Committed by Rafael J. Wysocki May 26, 2014

ACPI / thermal: fix workqueue destroy order



When the thermal module is to be removed, we should destroy the wq
acpi_thermal_pm_queue after the ACPI driver's remove callback is
executed as we will need to flush the workqueue there, or a NULL pointer
access will be hit.

Reported-and-tested-by: Kui Zhang <kuizhang@gmail.com>
References: http://www.spinics.net/lists/kernel/msg1747251.html


Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 4b660a7f

drivers/acpi/thermal.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1278,8 +1278,8 @@ static int __init acpi_thermal_init(void)

		static void __exit acpi_thermal_exit(void)
		{
		destroy_workqueue(acpi_thermal_pm_queue);
		acpi_bus_unregister_driver(&acpi_thermal_driver);
		destroy_workqueue(acpi_thermal_pm_queue);

		return;
		}

Admin message