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Re: [PATCH v2 7/7] merge-ort: convert more error() cases to path_msg()

From
Jeff King <peff@peff.net>
Date
Jul 6, 2024, 06:11 UTC
Message-ID
<20240706061104.GA700645@coredump.intra.peff.net>
In-Reply-To
<CABPp-BEkh4K1156FWUdB9wSjSQcdeUF0dcTJ3CS_b8yvz5Vffg@mail.gmail.com>
On Wed, Jul 03, 2024 at 08:48:59AM -0700, Elijah Newren wrote:
Show 16 quoted lines
> > >       if (type != OBJ_BLOB) {
> > >               free(buf);
> > > -             return error(_("object %s is not a blob"), oid_to_hex(oid));
> > > +             path_msg(opt, ERROR_OBJECT_NOT_A_BLOB, 0,
> > > +                      path, NULL, NULL, NULL,
> > > +                      _("error: object %s is not a blob"), oid_to_hex(oid));
> > >       }
> > >       strbuf_attach(dst, buf, size, size + 1);
> > >       return 0;
> >
> > This loses the early return in the "type != OBJ_BLOB" code path. So we
> > free(buf), but then continue on to the strbuf_attach() call on the
> > dangling pointer. Should it "return -1" like the earlier conditional?
> 
> Oops!  That's embarrassing.  Thanks for catching; I'll send in a patch
> on top since this is already in next.

Yeah, I only caught it because Coverity flagged it when it hit 'next'. It is quite subtle. :)

-Peff
Previous: Junio C HamanoNext: Derrick Stolee
Message 32 of 34 in “Fix and improve some error codepaths in merge-ort”
  1. 0/7 Fix and improve some error codepaths in merge-ortElijah Newren via GitGitGadget, Jun 13, 2024
  2. 1/7 merge-ort: extract handling of priv member into reusable functionElijah Newren via GitGitGadget, Jun 13, 2024
  3. Junio C HamanoJun 13, 2024
  4. Taylor BlauJun 13, 2024
  5. 2/7 merge-ort: maintain expected invariant for priv memberElijah Newren via GitGitGadget, Jun 13, 2024
  6. Taylor BlauJun 13, 2024
  7. Elijah NewrenJun 19, 2024
  8. 3/7 merge-ort: fix type of local 'clean' var in handle_content_merge()Elijah Newren via GitGitGadget, Jun 13, 2024
  9. 4/7 merge-ort: clearer propagation of failure-to-function from merge_submoduleElijah Newren via GitGitGadget, Jun 13, 2024
  10. 5/7 merge-ort: loosen commented requirementsElijah Newren via GitGitGadget, Jun 13, 2024
  11. 6/7 merge-ort: upon merge abort, only show messages causing the abortElijah Newren via GitGitGadget, Jun 13, 2024
  12. Eric SunshineJun 14, 2024
  13. Elijah NewrenJun 19, 2024
  14. 7/7 merge-ort: convert more error() cases to path_msg()Elijah Newren via GitGitGadget, Jun 13, 2024
  15. Taylor BlauJun 13, 2024
  16. 0/7 Fix and improve some error codepaths in merge-ortElijah Newren via GitGitGadget, Jun 19, 2024
  17. 1/7 merge-ort: extract handling of priv member into reusable functionElijah Newren via GitGitGadget, Jun 19, 2024
  18. 2/7 merge-ort: maintain expected invariant for priv memberElijah Newren via GitGitGadget, Jun 19, 2024
  19. Derrick StoleeJun 28, 2024
  20. 3/7 merge-ort: fix type of local 'clean' var in handle_content_merge()Elijah Newren via GitGitGadget, Jun 19, 2024
  21. Derrick StoleeJun 28, 2024
  22. 4/7 merge-ort: clearer propagation of failure-to-function from merge_submoduleElijah Newren via GitGitGadget, Jun 19, 2024
  23. Derrick StoleeJun 28, 2024
  24. Elijah NewrenJun 28, 2024
  25. Derrick StoleeJun 28, 2024
  26. 5/7 merge-ort: loosen commented requirementsElijah Newren via GitGitGadget, Jun 19, 2024
  27. 6/7 merge-ort: upon merge abort, only show messages causing the abortElijah Newren via GitGitGadget, Jun 19, 2024
  28. 7/7 merge-ort: convert more error() cases to path_msg()Elijah Newren via GitGitGadget, Jun 19, 2024
  29. Jeff KingJul 2, 2024
  30. Elijah NewrenJul 3, 2024
  31. Junio C HamanoJul 3, 2024
  32. Jeff KingJul 6, 2024
  33. Derrick StoleeJun 28, 2024
  34. Junio C HamanoJun 28, 2024

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