From 0346223a2fefeda6e453e3dde44dc95c32d54d04 Mon Sep 17 00:00:00 2001 From: Arvind Yadav Date: Thu, 23 Jun 2016 00:26:01 +0530 Subject: [PATCH] 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 Reviewed-by: Aaron Lu Signed-off-by: Rafael J. Wysocki --- include/acpi/video.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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) -- 2.20.1