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authorArvind Yadav <arvind.yadav.cs@gmail.com>2016-06-23 00:26:01 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-06-25 02:56:59 +0200
commit0346223a2fefeda6e453e3dde44dc95c32d54d04 (patch)
treef2d8a06a65811fb862ccd1f47032c0f25a759cf0 /include/acpi
parente34fbbac669de0b7fb7803929d0477f35f6e2833 (diff)
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.h2
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)