diff options
| -rw-r--r-- | drivers/acpi/video.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 9577b6fa265..4134b300b9c 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -558,6 +558,8 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) union acpi_object arg0 = { ACPI_TYPE_INTEGER }; struct acpi_object_list args = { 1, &arg0 }; + if (!video->cap._DOS) + return 0; if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) return -EINVAL; |