raw_spin_lock_irqsave(&devtree_lock, flags);
np->sibling = np->parent->child;
raw_spin_lock_irqsave(&devtree_lock, flags);
np->sibling = np->parent->child;
of_node_clear_flag(np, OF_DETACHED);
raw_spin_unlock_irqrestore(&devtree_lock, flags);
of_node_clear_flag(np, OF_DETACHED);
raw_spin_unlock_irqrestore(&devtree_lock, flags);