diff options
Diffstat (limited to 'drivers/acpi/video.c')
| -rw-r--r-- | drivers/acpi/video.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 097f24c87d8..94b1a4c5aba 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -40,10 +40,12 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <asm/uaccess.h> - +#include <linux/dmi.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_VIDEO_CLASS "video" #define ACPI_VIDEO_BUS_NAME "Video Bus" #define ACPI_VIDEO_DEVICE_NAME "Video Device" @@ -2028,8 +2030,11 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device) status = acpi_remove_notify_handler(device->dev->handle, ACPI_DEVICE_NOTIFY, acpi_video_device_notify); - sysfs_remove_link(&device->backlight->dev.kobj, "device"); - backlight_device_unregister(device->backlight); + if (device->backlight) { + sysfs_remove_link(&device->backlight->dev.kobj, "device"); + backlight_device_unregister(device->backlight); + device->backlight = NULL; + } if (device->cooling_dev) { sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling"); |