如何在C中的每次错误检查后避免长链的免费(或删除)？

while (currentNode != NULL) {
    // 检查节点
    // ...
    // 释放节点
    free(currentNode);
    currentNode = nextNode;
}

void freeList(Node *currentNode) {
    if (currentNode == NULL) {
        return;
    }
    freeList(currentNode->next);
    free(currentNode);
}

Node *currentNode = head;
while (currentNode != NULL) {
    Node *nextNode = currentNode->next;
    // 检查节点
    // ...
    // 释放节点
    free(currentNode);
    currentNode = nextNode;
}

typedef struct {
    Node *currentNode;
} Iterator;

void freeList(Iterator *iterator) {
    if (iterator->currentNode == NULL) {
        return;
    }
    freeList(iterator->currentNode->next);
    free(iterator->currentNode);
}