PVS-Studio warning V604 for DDKSamples

VOID
ReportToString(
   PHID_DATA pData,
   _Inout_updates_bytes_(iBuffSize) LPSTR szBuff,
   UINT iBuffSize
)
{
  ....
  if(FAILED(StringCbPrintf (szBuff,
                iBuffSize,
                "Usage Page: 0x%x, Usages: ",
                pData -> UsagePage)))
  {
    for(j=0; j<sizeof(szBuff); j++)
    {
      szBuff[j] = '\0';
    }
    return;
  }
  ....
}

Most likely this is what should be written here: for(j=0; j<iBuffSize; j++)

This suspicious code was found in DDKSamples project by PVS-Studio static code analyzer.
Warning message is:
V604 It is odd that the number of iterations in the loop equals to the size of the 'szBuff' pointer. hclient.c 1688

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/