[PATCH v1 2/3] ACPI: video: Adjust event notification routine

["Rafael J. Wysocki" <rafael@kernel.org>]

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Adjust acpi_video_bus_notify() to cast its "data" argument to a struct
acpi_video_bus pointer istead of a struct acpi_device one, which allows
the use of acpi_driver_data() to be limited and will facilitate
subsequent changes.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_video.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -1540,14 +1540,11 @@ static int acpi_video_bus_stop_devices(s
 
 static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 {
-	struct acpi_device *device = data;
-	struct acpi_video_bus *video = acpi_driver_data(device);
+	struct acpi_video_bus *video = data;
+	struct acpi_device *device = video->device;
 	struct input_dev *input;
 	int keycode = 0;
 
-	if (!video || !video->input)
-		return;
-
 	input = video->input;
 
 	switch (event) {
@@ -2076,7 +2073,7 @@ static int acpi_video_bus_add(struct acp
 		goto err_del;
 
 	error = acpi_dev_install_notify_handler(device, ACPI_DEVICE_NOTIFY,
-						acpi_video_bus_notify, device);
+						acpi_video_bus_notify, video);
 	if (error)
 		goto err_remove;