[PATCH] xkb: ignore floating slave devices when updating from master (#81885)

[Daniel Stone]

R-b.
-d

On Monday, August 11, 2014, Peter Hutterer <peter.hutterer at who-t.net> wrote:

> ping?
>
> On Mon, Aug 04, 2014 at 10:47:03AM +1000, Peter Hutterer wrote:
> > Introduced in 45fb3a934dc0db51584aba37c2f9d73deff9191d. When a device is
> > enabled, the master's locked state is pushed to the slave. If the device
> is
> > floating, no master exists and we triggered a NULL-pointer dereference
> > in XkbPushLockedStateToSlaves.
> >
> > X.Org Bug 81885 <http://bugs.freedesktop.org/show_bug.cgi?id=81885>
> >
> > Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net <javascript:;>>
> > ---
> >  dix/devices.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/dix/devices.c b/dix/devices.c
> > index 7f079ff..9e1c546 100644
> > --- a/dix/devices.c
> > +++ b/dix/devices.c
> > @@ -416,7 +416,7 @@ EnableDevice(DeviceIntPtr dev, BOOL sendevent)
> >          XISendDeviceHierarchyEvent(flags);
> >      }
> >
> > -    if (!IsMaster(dev))
> > +    if (!IsMaster(dev) && !IsFloating(dev))
> >          XkbPushLockedStateToSlaves(GetMaster(dev, MASTER_KEYBOARD), 0,
> 0);
> >      RecalculateMasterButtons(dev);
> >
> > --
> > 1.9.3
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