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Commit 9a4d8d60 authored by Lee, Chun-Yi's avatar Lee, Chun-Yi Committed by Rafael J. Wysocki
Browse files

ACPI / bus: handle ACPI hotplug schedule errors completely 



Kernel should decrements the reference count of ACPI device
when the scheduling of ACPI hotplug work failed, and evaluates
_OST to notify BIOS the failure.

Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: default avatar"Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 6f7da290

drivers/acpi/bus.c

+6 −2
Original line number Diff line number Diff line
@@ -432,12 +432,16 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) 
	    (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS))

		driver->ops.notify(adev, type);



	if (hotplug_event && ACPI_SUCCESS(acpi_hotplug_schedule(adev, type)))

	if (!hotplug_event) {

		acpi_bus_put_acpi_device(adev);

		return;

	}



	acpi_bus_put_acpi_device(adev);

	if (ACPI_SUCCESS(acpi_hotplug_schedule(adev, type)))

		return;



	acpi_bus_put_acpi_device(adev);



 err:

	acpi_evaluate_ost(handle, type, ost_code, NULL);

}