PVS-Studio warning V528 for Fennec Media Project

void MP4RtpHintTrack::GetPayload(....)
{
  ...
  if (pSlash != NULL) {
    pSlash++;
    if (pSlash != '\0') {
      length = strlen(pRtpMap) - (pSlash - pRtpMap);
      *ppEncodingParams = (char *)MP4Calloc(length + 1);
      strncpy(*ppEncodingParams, pSlash, length);
    }
}

This is what should have been written here: (*pSlash != '\0').

This suspicious code was found in Fennec Media Project project by PVS-Studio static code analyzer.
Warning message is:
V528 It is odd that pointer to 'char' type is compared with the '\0' value. Probably meant: *pSlash != '\0'. rtphint.cpp 346

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