new delete 的问题

typedef struct QNode
{
    CString data;
    struct QNode* next;
}QNode;
typedef struct QList
{
    struct QNode* front;
    struct QNode* end;
}QList;
void InsertQL(QList* QL,CString value)
{
    CString m;
    QNode* p;
    p=new(QNode);
    m=value;
    p->data=m;
    if(QL->front==NULL)
    {
        QL->front=p;
        QL->end=p;
        p->next=NULL;
    }
    else
    {
        p->next=NULL;
        QL->end->next=p;
        QL->end=p;
    }
        delete[] p;
}
为什么delete的时候会出错呢