谁拥有WDFREQUEST中的WDFMEMORY?

我正在编写一个Windows内核驱动程序。我需要创建一个新的I/O请求,并为输入缓冲区分配自己的内存。

// Create request
WDFREQUEST request;
status = WdfRequestCreate(WDF_NO_OBJECT_ATTRIBUTES, target, &request);
if (!NT_SUCCESS(status)) {
    goto exit;
}

// Allocate buffer for request
WDFMEMORY inputMemory;
status = WdfMemoryCreate(WDF_NO_OBJECT_ATTRIBUTES, PagedPool, 0, 1024, &inputMemory, NULL);
if (!NT_SUCCESS(status)) {
    goto exit;
}

// Assign input buffer to request
status = WdfIoTargetFormatRequestForIoctl(target, request, IOCTL_FOO, inputMemory, NULL, NULL, NULL);
if (!NT_SUCCESS(status)) {
    goto exit;
}

// Asynchronously send the ioctl request
WdfRequestSetCompletionRoutine(request, MyCompletionRoutine, NULL);
if (!WdfRequestSend(request, target, NULL)) {
    status = WdfRequestGetStatus(request);
    goto exit;
}

我的问题是,如果 WdfIoTargetFormatRequestForIoctl 成功完成,我还应该执行吗 WdfObjectDelete(inputMemory) WdfObjectDelete(request) 销毁内存和请求?此外,对于函数中的错误清理和完成例程中的错误清理,答案是否相同?