Commit 1934fee6 authored by Zhang Rui's avatar Zhang Rui Committed by Rafael J. Wysocki
Browse files

ACPI: video: improve PM notifer callback 



PM notifier callbacks should check for supported events rather than filter
out the unsupported events. So that it won't break when a new event is
introduced.

No functional change in this patch.

Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 42226c98

drivers/acpi/acpi_video.c

+15 −16
Original line number Diff line number Diff line
@@ -1707,12 +1707,9 @@ static int acpi_video_resume(struct notifier_block *nb, 
	int i;



	switch (val) {

	case PM_HIBERNATION_PREPARE:

	case PM_SUSPEND_PREPARE:

	case PM_RESTORE_PREPARE:

		return NOTIFY_DONE;

	}



	case PM_POST_HIBERNATION:

	case PM_POST_SUSPEND:

	case PM_POST_RESTORE:

		video = container_of(nb, struct acpi_video_bus, pm_nb);



		dev_info(&video->device->dev, "Restoring backlight state\n");
@@ -1726,6 +1723,8 @@ static int acpi_video_resume(struct notifier_block *nb, 


		return NOTIFY_OK;

	}

	return NOTIFY_DONE;

}



static acpi_status

acpi_video_bus_match(acpi_handle handle, u32 level, void *context,