staging: vt6656: no need to bIndicateReceive when no bytes to read.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/usbpipe.c

@@ -575,6 +575,7 @@ s_nsBulkInUsbIoCompleteRead(
 //            MP_SET_FLAG(pDevice, fMP_DISCONNECTED);
 //        }
     } else {
+	if (bytesRead)
 		bIndicateReceive = TRUE;
         pDevice->ulBulkInContCRCError = 0;
         pDevice->ulBulkInBytesRead += bytesRead;