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builtin/submodule--helper: fix leaking remote ref on errors

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When `update_submodule()` fails we return with `die_message()`, which
only causes us to print the same message as `die()` would without
actually causing the process to die. We don't free memory in that case
and thus leak memory.

Fix the leak by freeing the remote ref.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2024-09-26 13:46:21 +02:00 committed by Junio C Hamano
parent f1652c04b5
commit 5bf922a4e9
2 changed files with 10 additions and 4 deletions
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13
builtin/submodule--helper.c
View file

@ -2648,15 +2648,20 @@ static int update_submodule(struct update_data *update_data)
if (!update_data->nofetch) {
if (fetch_in_submodule(update_data->sm_path, update_data->depth,
0, NULL))
0, NULL)) {
free(remote_ref);
return die_message(_("Unable to fetch in submodule path '%s'"),
update_data->sm_path);
}
}
if (repo_resolve_gitlink_ref(the_repository, update_data->sm_path,
remote_ref, &update_data->oid))
return die_message(_("Unable to find %s revision in submodule path '%s'"),
remote_ref, update_data->sm_path);
remote_ref, &update_data->oid)) {
ret = die_message(_("Unable to find %s revision in submodule path '%s'"),
remote_ref, update_data->sm_path);
free(remote_ref);
return ret;
}
free(remote_ref);
}

1
t/t7420-submodule-set-url.sh
View file

@ -10,6 +10,7 @@ as expected.
'
TEST_NO_CREATE_REPO=1
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup' '