Bug in kiosk mode?

[Benedikt Meurer]

Jasper Huijsmans wrote:
> Hey Benedikt,

Jasper,

> http://bugzilla.xfce.org/show_bug.cgi?id=382
> 
> Did you see that bug? It looks like there may be a problem with kiosk mode.
> Any ideas? I can't really find it.

I've already looked into this, but no idea whats wrong. xfce_kiosk_free 
is plain simple and short, so the segmentation fault is likely to be 
caused by a faulty pointer (I just committed NULL checks).

Benedikt