HackerRank. Reverse a doubly linked list

// Complete the reverse function below.

static DoublyLinkedListNode reverse(DoublyLinkedListNode head) {
    DoublyLinkedListNode prevNode = null;
    DoublyLinkedListNode curNode = head;
    DoublyLinkedListNode nextNode = head.next;
    curNode.next = prevNode;

    while(nextNode != null) {
        prevNode = curNode;
        curNode = nextNode;
        nextNode = curNode.next;

        curNode.next = prevNode;
    }

    return curNode;
}