PVS-Studio warning V521 for IPP Samples

static int DTMF_16s(const Ipp16s *pBuffer, int nbytes,
                    USC_ToneID *toneRes,
                    DTMFState_16s *pIppTDParams)
{
  ...
  for (i = pIppTDParams->dtmf_fs, j = 0;
       i < dtmf_frame_size+pIppTDParams->dtmf_fs, j < nbytes;
       i++, j++)
  ...
}

The && operator should be used in the loop condition.

This suspicious code was found in IPP Samples project by PVS-Studio static code analyzer.
Warning message is:
V521 Such expressions using the ',' operator are dangerous. Make sure the expression is correct. speech usc_dtmf.c 309

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