lists issue

Hi all, There may be an issue in blow function when deleted the node is the first one, that mean n->prev is NULL....., similarly, same issue as the last one node is deleted. LIST_INLINE void rem_node(node *n) { node *z = n->prev; node *x = n->next; z->next = x; x->prev = z; n->next = NULL; n->prev = NULL; } Thanks Arvin