diff options
| -rw-r--r-- | drivers/misc/fujitsu-laptop.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/misc/fujitsu-laptop.c b/drivers/misc/fujitsu-laptop.c index d2cf0bfe316..1070dc1bc18 100644 --- a/drivers/misc/fujitsu-laptop.c +++ b/drivers/misc/fujitsu-laptop.c @@ -990,16 +990,16 @@ static int __init fujitsu_init(void) /* Register backlight stuff */ - fujitsu->bl_device = - backlight_device_register("fujitsu-laptop", NULL, NULL, - &fujitsubl_ops); - if (IS_ERR(fujitsu->bl_device)) - return PTR_ERR(fujitsu->bl_device); - - max_brightness = fujitsu->max_brightness; - - fujitsu->bl_device->props.max_brightness = max_brightness - 1; - fujitsu->bl_device->props.brightness = fujitsu->brightness_level; + if (!acpi_video_backlight_support()) { + fujitsu->bl_device = + backlight_device_register("fujitsu-laptop", NULL, NULL, + &fujitsubl_ops); + if (IS_ERR(fujitsu->bl_device)) + return PTR_ERR(fujitsu->bl_device); + max_brightness = fujitsu->max_brightness; + fujitsu->bl_device->props.max_brightness = max_brightness - 1; + fujitsu->bl_device->props.brightness = fujitsu->brightness_level; + } ret = platform_driver_register(&fujitsupf_driver); if (ret) @@ -1035,7 +1035,8 @@ fail_hotkey: fail_backlight: - backlight_device_unregister(fujitsu->bl_device); + if (fujitsu->bl_device) + backlight_device_unregister(fujitsu->bl_device); fail_platform_device2: @@ -1062,7 +1063,8 @@ static void __exit fujitsu_cleanup(void) &fujitsupf_attribute_group); platform_device_unregister(fujitsu->pf_device); platform_driver_unregister(&fujitsupf_driver); - backlight_device_unregister(fujitsu->bl_device); + if (fujitsu->bl_device) + backlight_device_unregister(fujitsu->bl_device); acpi_bus_unregister_driver(&acpi_fujitsu_driver); |