sony-laptop: brightness regression fix
authorAlessandro Guido <ag@alessandroguido.name>
Wed, 12 Nov 2008 22:03:28 +0000 (23:03 +0100)
committerLen Brown <len.brown@intel.com>
Wed, 26 Nov 2008 23:12:07 +0000 (18:12 -0500)
commit38cfc148e1bc470175b3ad131db7dd7bdcff37ee
tree8a59a808ca50fbc1d889047ba80d9102de4ff3c3
parent3bdca1b863c1ebcb2244fc0cb683876d7330e62b
sony-laptop: brightness regression fix

After commit 540b8bb9c33935183ceb5bed466a42ad72b2af56:

  sony-laptop: fingers off backlight if video.ko is serving this functionality

I can't set brightness on my sony laptop (nothing in /sys/class/backlight).
dmesg says "sony-laptop: Sony: Brightness ignored, must be controlled by ACPI
video driver".

The function acpi_video_backlight_support returns 0 if we should use the
vendor-specific backlight support, while non-0 if the ACPI generic should
be used. Because of this, the check introduced by the said commit appears
reversed.

Signed-off-by: Alessandro Guido <ag@alessandroguido.name>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/misc/sony-laptop.c