ACPI video: check the return value of acpi_video_device_lcd_set_level
ACPI video: check the return value of acpi_video_device_lcd_set_level

Signed-off-by: Zhang Rui <f2a4cf793007be8f81a774dc7806c1ffea7b4a2c@intel.com>
Acked-by: Matthew Garrett <10ea1ff373631291cadf45b163e9fbaf27d1200e@srcf.ucam.org>
Acked-by: Thomas Renninger <dc31099191a1a231a41b126c85d59916cd0f555f@suse.de>
Signed-off-by: Len Brown <b060cfa1096cc6e8be83699ddb4ed8a77dd63af5@intel.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas