将文件信息读入到单链表中

void scanfCareer(struct career **person)
{

    struct career *p ;
    struct career *mp;
    struct career *temp;
   
    FILE *fp;
    if ((fp=fopen("car.text","r"))==NULL)
    {
        printf("打开文件失败了……6666!\n");
        exit(1);
    }
   
    while((fscanf(fp,"%s%s%s",p->c_num,p->c_nam,p->c_car))==3)
    {
      if(pool !=NULL)
    {
        mp=pool;
        pool=pool->next;
        count--;
     }
     //内存池为空时
    else
    {
    mp=(struct career *)malloc(sizeof(struct career));
    if (mp==NULL)
        {
        printf("Failure 内存分配失败\n");
        exit(1);
        }
    }
    mp=p;
   
    if (*person!=NULL)
    {
        
        temp=*person;
        *person=mp;
        mp->next =temp;
        
     }
     else
     {
         *person =p;
         p->next =NULL;
     }   
    }
    fclose(fp);
   
}
int main {
struct career *person=NULL;
scanfCareer(&person);
}
打印出的peourson链表只有文件car.text的最后一组数据，怎样更好的解决将文件的内容读入到单链表中？？？求助！！！