Remove double-free from exnode_destory
Remove double-free from exnode_destory

Rearrage exnode destroy to properly trap a failure and not get a double
free

PerilousApricot/lstore,PerilousApricot/lstore,accre/lstore,accre/lstore,tacketar/lstore,tacketar/lstore,accre/lstore,PerilousApricot/lstore,tacketar/lstore,accre/lstore,tacketar/lstore,PerilousApricot/lstore