Re: [PATCH 00/13] leds: fix attribute-creation races
From: Greg Kroah-Hartman
Date: Fri Jun 27 2014 - 00:05:53 EST
On Wed, Jun 25, 2014 at 03:46:19PM -0700, Bryan Wu wrote:
> On Wed, Jun 25, 2014 at 10:08 AM, Johan Hovold <johan@xxxxxxxxxx> wrote:
> > LED-class device attributes should be created using the attribute groups
> > of struct device, rather than be added manually after the device has
> > been registered in order to avoid racing with userspace.
> >
> > The first patch adds an attribute groups field to struct led_classdev,
> > which is used during registration to add device attributes in a
> > race-free manner.
> >
> > The remaining patches convert the current racy LED-device attribute
> > creations to use the new facility. Hopefully my grep-patterns have
> > caught most instances. Note that this also tends to simplify probe error
> > paths.
> >
> > The lp55xx-common failed to remove the attribute group it is currently
> > creating, something which is fixed separately.
> >
> > Note that this series include one driver from drivers/input/keyboard.
> >
> > The individual led-driver patches have been compile tested only.
> >
>
> Thanks a lot for driving this. I will applied this patchset into my
> -devel branch. After I got the Ack from Input guys, I will apply it to
> my for-next branch then.
Series looks good to me, Johan, thanks for doing this work.
greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/