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authorLen Brown <len.brown@intel.com>2009-12-30 02:51:31 -0500
committerLen Brown <len.brown@intel.com>2009-12-30 02:51:31 -0500
commitb943aa83f8038959999a6b12e469a875ab245a36 (patch)
tree495ae9fa79fb73b0e8674eabf17a87b1a265910d
parentea840aa2d01cf107b331d04ddea46efaee583a83 (diff)
parent28c32e99bdf5ab838e7179c1aaca5a35a07f2a2b (diff)
downloadblackbird-op-linux-b943aa83f8038959999a6b12e469a875ab245a36.tar.gz
blackbird-op-linux-b943aa83f8038959999a6b12e469a875ab245a36.zip
Merge branch 'bugzilla-13671' into release
-rw-r--r--drivers/acpi/video.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 05dff631591c..3b063a6ac52e 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1979,6 +1979,10 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)
unsigned long long level_current, level_next;
int result = -EINVAL;
+ /* no warning message if acpi_backlight=vendor is used */
+ if (!acpi_video_backlight_support())
+ return 0;
+
if (!device->brightness)
goto out;
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