On Wed, 10 Oct 2012 00:58:10 +0200 "Rafael J. Wysocki" <rjw@xxxxxxx> wrote: > On Wednesday 10 of October 2012 02:19:06 Igor Murzov wrote: > > 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@xxxxxxx> > > Put more detials into the changelog, please. The BZ entry linked above > may or may not be accessible when the changelog is read by someone. > > > --- > > drivers/acpi/video.c | 8 ++++++-- > > 1 file changed, 6 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c > > index 1e0a9e1..01bb58d 100644 > > --- a/drivers/acpi/video.c > > +++ b/drivers/acpi/video.c > > @@ -1349,8 +1349,12 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video, > > struct acpi_device *dev; > > > > status = acpi_video_device_enumerate(video); > > - if (status) > > - return status; > > + if (status) { > > + if (status == AE_AML_PACKAGE_LIMIT) > > + status = 0; /* Ignore this error */ > > + else > > + return status; > > + } > > First off, please add a comment explaining _why_ we're ignoring the error. The problem is that i'm not sure if it's ok to ignore AE_AML_PACKAGE_LIMIT here. Stefan Wilkens in bugzilla claims that video module works fine on his Compaq 6720s in spite of the fact that acpi_video_device_enumerate() is not able to find any video device on his laptop. This fix is just the most obvious one, not necessarily the proper one. > Second, what about adding just: > > if (status == AE_AML_PACKAGE_LIMIT) > status = 0; > > before the "if (status)" check? Ok -- Igor > > > > list_for_each_entry(dev, &device->children, node) { > > Thanks, > Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
