branch: fix a leak in dwim_and_setup_tracking

In e89f151db1 (branch: move --set-upstream-to behavior to dwim_and_setup_tracking(), 2022-01-28) the string returned by dwim_branch_start() was not freed, resulting in a memory leak. It can be reviewed with: $ git remote add local . $ git update-ref refs/remotes/local/foo HEAD $ git branch --set-upstream-to local/foo foo Direct leak of 23 byte(s) in 1 object(s) allocated from: ... in xstrdup wrapper.c ... in expand_ref refs.c ... in repo_dwim_ref refs.c ... in dwim_branch_start branch.c ... in dwim_and_setup_tracking branch.c ... in cmd_branch builtin/branch.c ... in run_builtin git.c Let's free it now. Signed-off-by: Rubén Justo <rjusto@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Rubén Justo committed Jun 11, 2023 at 20:49 UTC 1533bda7700d6aa4374509f9611ae52a4eb2bcda
1 file changed +2 -1
branch.c
+2 -1
index ba3914adf5..a7333a4c32 100644 --- a/branch.c +++ b/branch.c @@ -638,9 +638,10 @@ void dwim_and_setup_tracking(struct repository *r, const char *new_ref, const char *orig_ref, enum branch_track track, int quiet) { - char *real_orig_ref; + char *real_orig_ref = NULL; dwim_branch_start(r, orig_ref, track, &real_orig_ref, NULL); setup_tracking(new_ref, real_orig_ref, track, quiet); + free(real_orig_ref); } /**