[gs-bugs] [Bug 691568] New: closedctd function has a bug

[bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=691568

           Summary: closedctd function has a bug
           Product: MuPDF
           Version: unspecified
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P4
         Component: fitz
        AssignedTo: tor.andersson at artifex.com
        ReportedBy: akay at 21cn.com
         QAContact: gs-bugs at ghostscript.com
   Estimated Hours: 0.0


on file filt_dctd.c
Line 182,
function closedctd(fz_stream *stm)

    if (state->init)
        jpeg_finish_decompress(&state->cinfo);
    state->chain->rp = state->chain->wp - state->cinfo.src->bytes_in_buffer;
    jpeg_destroy_decompress(&state->cinfo);

I think this will modify to:
    if (state->init)
    {
        jpeg_finish_decompress(&state->cinfo);
        state->chain->rp = state->chain->wp -
state->cinfo.src->bytes_in_buffer;
        jpeg_destroy_decompress(&state->cinfo);
    }

Because if the state did not init,if you call
jpeg_destroy_decompress(&state->cinfo);
will cause fatal error.

Please check.

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