diff options
| author |   Arvind Yadav <arvind.yadav.cs@gmail.com> | 2016-06-23 00:26:01 +0530 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-06-25 02:56:59 +0200 |
| commit | 0346223a2fefeda6e453e3dde44dc95c32d54d04 (patch) | |
| tree | f2d8a06a65811fb862ccd1f47032c0f25a759cf0 /include/acpi | |
| parent | ACPI / video: skip evaluating _DOD when it does not exist (diff) | |
| download | linux-dev-0346223a2fefeda6e453e3dde44dc95c32d54d04.tar.xz linux-dev-0346223a2fefeda6e453e3dde44dc95c32d54d04.zip | |
ACPI / video: Dummy acpi_video_register should return error code
The inline acpi_video_register stub simply allows compilation on systems
with CONFIG_ACPI_VIDEO disabled. the dummy acpi_video_register does not
register an acpi_bus_driver at all. The inline acpi_video_register should
return to indicate lack of support when attempting to register an
acpi_bus_driver on such a system with CONFIG_ACPI_VIDEO disabled.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/video.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/acpi/video.h b/include/acpi/video.h index 5731ccb42585..4536bd345ab4 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -54,7 +54,7 @@ extern int acpi_video_get_levels(struct acpi_device *device, struct acpi_video_device_brightness **dev_br, int *pmax_level); #else -static inline int acpi_video_register(void) { return 0; } +static inline int acpi_video_register(void) { return -ENODEV; } static inline void acpi_video_unregister(void) { return; } static inline int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, void **edid) |