LeetCode vDelete Node in a Linked List

/**
* Definition for singly-linked list.
* struct ListNode {
*     int val;
*     struct ListNode *next;
* };
*/
void deleteNode(struct ListNode* node) {
struct ListNode* first=node->next;
if(node==NULL)
return ;
node->val=first->val;
node->next=first->next;
free(first);
}