On Tue, Feb 27, 2018 at 1:57 AM, Eric Sunshine <sunsh...@sunshineco.com> wrote: > Can: > > char *old_gitdir = repo->gitdir; > repo->gitdir = xstrdup(...); > free(old_gitdir); > > be simplified to: > > free(repo->gitdir); > repo->gitdir = xstrdup(...); > > ?
No because I think "root" (not quoted here) could point to the same value as repo->gitdir, if you free that first, the second xstrdup() will duplicate a freed memory. See 1fb2b636c6 (set_git_dir: handle feeding gitdir to itself - 2017-09-05) I will add a comment about this since it's not very clear from this code. -- Duy
