ACPI: catch calls of acpi_driver_data on pointer of wrong type

Catch attempts to use of acpi_driver_data on pointers of wrong type.

akpm: rewritten to use proper C typechecking and remove the
"function"-used-as-lvalue thing.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index e8a51a1700f7..85c6554bcb4c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1491,7 +1491,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
 
                 strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
                 strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
-                acpi_driver_data(device) = data;
+                device->driver_data = data;
 
                 data->device_id = device_id;
                 data->video = video;
@@ -1982,7 +1982,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
         video->device = device;
         strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
         strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
-        acpi_driver_data(device) = video;
+        device->driver_data = video;
 
         acpi_video_bus_find_cap(video);
         error = acpi_video_bus_check(video);
@@ -2058,7 +2058,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
         acpi_video_bus_remove_fs(device);
  err_free_video:
         kfree(video);
-        acpi_driver_data(device) = NULL;
+        device->driver_data = NULL;
 
         return error;
 }