Fix wmiir segfault on write.
Fix wmiir segfault on write.


0intro/wmii,bwhmather/wmii,sunaku/wmii,0intro/wmii,bwhmather/wmii,sunaku/wmii,0intro/wmii,bwhmather/wmii,sunaku/wmii,sunaku/wmii,bwhmather/wmii,0intro/wmii,bwhmather/wmii,sunaku/wmii