求助！warning treated as error - no 'object' file generated

(PUCHAR)tmpBuf += current_len;这里出错，显示 错误    1    error C2220: warning treated as error - no 'object' file generated    d:\ddktest\driver1\driver1\miniport.c    82    
求助！！！！！！


          ULONG current_len=0;
       PVOID  tmpBuf    = NULL;

          while (NULL != ndis_buffer)
            {
                NdisQueryBufferSafe(ndis_buffer, &address, &current_len, NormalPagePriority);
                NdisMoveMemory(tmpBuf, address, current_len);
                (PUCHAR)tmpBuf += current_len;
                NdisGetNextBuffer(ndis_buffer, &ndis_buffer);
            }

类型不匹配提示警告
UCHAR current_len=0;　试一下