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| author | Patrick Steinhardt <ps@pks.im> | 2024-05-27 13:46:06 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2024-05-27 11:19:58 -0700 |
| commit | cc395d6b47e4af59b3e87a64b34dffa79e8dc262 (patch) | |
| tree | b1e71b4797f89fe945f2ee87860ee24bcefa37be /builtin/worktree.c | |
| parent | strbuf: fix leak when `appendwholeline()` fails with EOF (diff) | |
| download | git-cc395d6b47e4af59b3e87a64b34dffa79e8dc262.tar.gz git-cc395d6b47e4af59b3e87a64b34dffa79e8dc262.zip | |
checkout: clarify memory ownership in `unique_tracking_name()`
The function `unique_tracking_name()` returns an allocated string, but
does not clearly indicate this because its return type is `const char *`
instead of `char *`. This has led to various callsites where we never
free its returned memory at all, which causes memory leaks.
Plug those leaks and mark now-passing tests as leak free.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/worktree.c')
| -rw-r--r-- | builtin/worktree.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/builtin/worktree.c b/builtin/worktree.c index 7e0868df72..937da6c0ee 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -736,16 +736,14 @@ static int dwim_orphan(const struct add_opts *opts, int opt_track, int remote) return 1; } -static const char *dwim_branch(const char *path, const char **new_branch) +static char *dwim_branch(const char *path, char **new_branch) { int n; int branch_exists; const char *s = worktree_basename(path, &n); - const char *branchname = xstrndup(s, n); + char *branchname = xstrndup(s, n); struct strbuf ref = STRBUF_INIT; - UNLEAK(branchname); - branch_exists = !strbuf_check_branch_ref(&ref, branchname) && refs_ref_exists(get_main_ref_store(the_repository), ref.buf); @@ -756,8 +754,7 @@ static const char *dwim_branch(const char *path, const char **new_branch) *new_branch = branchname; if (guess_remote) { struct object_id oid; - const char *remote = - unique_tracking_name(*new_branch, &oid, NULL); + char *remote = unique_tracking_name(*new_branch, &oid, NULL); return remote; } return NULL; @@ -769,6 +766,8 @@ static int add(int ac, const char **av, const char *prefix) const char *new_branch_force = NULL; char *path; const char *branch; + char *branch_to_free = NULL; + char *new_branch_to_free = NULL; const char *new_branch = NULL; const char *opt_track = NULL; const char *lock_reason = NULL; @@ -859,16 +858,17 @@ static int add(int ac, const char **av, const char *prefix) opts.orphan = dwim_orphan(&opts, !!opt_track, 0); } else if (ac < 2) { /* DWIM: Guess branch name from path. */ - const char *s = dwim_branch(path, &new_branch); + char *s = dwim_branch(path, &new_branch_to_free); if (s) - branch = s; + branch = branch_to_free = s; + new_branch = new_branch_to_free; /* DWIM: Infer --orphan when repo has no refs. */ opts.orphan = (!s) && dwim_orphan(&opts, !!opt_track, 1); } else if (ac == 2) { struct object_id oid; struct commit *commit; - const char *remote; + char *remote; commit = lookup_commit_reference_by_name(branch); if (!commit) { @@ -923,6 +923,8 @@ static int add(int ac, const char **av, const char *prefix) ret = add_worktree(path, branch, &opts); free(path); + free(branch_to_free); + free(new_branch_to_free); return ret; } |