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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 /drivers/acpi/video.c
parent608f62b996c6e140ff7515abe75305aed4726b33 (diff)
downloadlinux-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>
Diffstat (limited to 'drivers/acpi/video.c')
-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) {