链表查找输入不是链表的数据else无法显示

#include<stdio.h>
#include<stdlib.h>
struct node
{
    int data;
    char name[20];
    struct node *pnext;
};
struct node *search(struct node *g,int num)
{
    while(g->data!=num&&g!=NULL)
        g = g->pnext;
    return g;
}
int main()
{
    int n,i,num;
    struct node *pre,*h,*p,*m;
    p = (struct node *)malloc(sizeof(struct node));
    h = p;
    pre = p;
    printf("请输入共有几个结点：");
    scanf("%d",&n);
    printf("请输入第1个结点的data：");
    scanf("%d",&p->data);
    printf("请输入第1个结点的name：");
    scanf("%s",p->name);
    p->pnext = NULL;
    for(i = 2;i <= n;i++)
    {
        p = (struct node *)malloc(sizeof(struct node));
        printf("请输入第%d个结点的data：",i);
        scanf("%d",&p->data);
        printf("请输入第%d个结点的name：",i);
        scanf("%s",p->name);
        p->pnext = NULL;
        pre->pnext = p;
        pre = p;
    }
    printf("请输入要查找的data：");
    scanf("%d",&num);
    m = search(h,num);
    if(m->data != 0)
    {
        printf("查找的name为：%s",m->name);
    }
    else
    {
        printf("没有要查找的数据");
    }
    return 0;
}