From 90af2cf6205bfc8def8c5a64c9134031d60b10fb Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Tue, 14 Apr 2009 11:02:18 +0800 Subject: [PATCH] ACPI video: fix an error when the brightness levels on AC and on Battery are same when the brightness level on AC and brightness level on Battery are same, the level_ac_battery is 1 in the current code, which is wrong. Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/video.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index cd4fb7543a90..21968ae6ed91 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -770,10 +770,12 @@ acpi_video_init_brightness(struct acpi_video_device *device) * In this case, the first two elements in _BCL packages * are also supported brightness levels that OS should take care of. */ - for (i = 2; i < count; i++) - if (br->levels[i] == br->levels[0] || - br->levels[i] == br->levels[1]) + for (i = 2; i < count; i++) { + if (br->levels[i] == br->levels[0]) level_ac_battery++; + if (br->levels[i] == br->levels[1]) + level_ac_battery++; + } if (level_ac_battery < 2) { level_ac_battery = 2 - level_ac_battery;