[sane-devel] SEGFAULT in sanei_scsi_close()

[Karl Heinz Kremer]

I am trying to debug a problem with the EPSN backend. Whenever
the backend is running in batch mode to scan via the ADF, the
frontend will crash with a segmentation fault in sanei_scsi_close().

The reason seems to be that one for the free list elements is not
valid, and when the next pointer is referenced, the software goes
down:

      req = ((fdparms*) fd_info[fd].pdata)->sane_free_list;
      while (req)
        {
->        next_req = req->next;
          free(req);
          req = next_req;
        }

Has anybody seen this before? Is this something that could be
cause by how I am using the sanei_scsi functions?

Thanks and Happy Holidays,

Karl Heinz

-- 
Karl Heinz Kremer                                  khk at khk.net
PGP Key at                 http://www.khk.net/download/khk.asc
EPSON Sane Backend:                         http://www.khk.net
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