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authorIgor Murzov <e-mail@date.by>2012-10-13 04:41:25 +0400
committerZhang Rui <rui.zhang@intel.com>2012-11-03 09:52:54 +0800
commitfba4e087361605d1eed63343bb08811f097c83ee (patch)
tree2390b3c95ef0a5ce1620c356734a262c232e3737
parent608f62b996c6e140ff7515abe75305aed4726b33 (diff)
downloadlinux-linaro-stable-fba4e087361605d1eed63343bb08811f097c83ee.tar.gz
ACPI video: Ignore errors after _DOD evaluation.
There are systems where video module known to work fine regardless of broken _DOD and ignoring returned value here doesn't cause any issues later. This should fix brightness controls on some laptops. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47861 Signed-off-by: Igor Murzov <e-mail@date.by> Reviewed-by: Sergey V <sftp.mtuci@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
-rw-r--r--drivers/acpi/video.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index f94d4c818fc7..0230cb6cbb3a 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1345,12 +1345,15 @@ static int
acpi_video_bus_get_devices(struct acpi_video_bus *video,
struct acpi_device *device)
{
- int status;
+ int status = 0;
struct acpi_device *dev;
- status = acpi_video_device_enumerate(video);
- if (status)
- return status;
+ /*
+ * There are systems where video module known to work fine regardless
+ * of broken _DOD and ignoring returned value here doesn't cause
+ * any issues later.
+ */
+ acpi_video_device_enumerate(video);
list_for_each_entry(dev, &device->children, node) {