[PATCH v2 19/23] promisor-remote: fix leaking partial clone filter

[Patrick Steinhardt <ps@xxxxxx>]

The partial clone filter of a promisor remote is never free'd, causing
memory leaks. Furthermore, in case multiple partial clone filters are
defined for the same remote, we'd overwrite previous values without
freeing them.

Fix these leaks.

Signed-off-by: Patrick Steinhardt <ps@xxxxxx>
---
 promisor-remote.c                  | 2 ++
 t/t7814-grep-recurse-submodules.sh | 1 +
 2 files changed, 3 insertions(+)

diff --git a/promisor-remote.c b/promisor-remote.c
index 317e1b127f..9345ae3db2 100644
--- a/promisor-remote.c
+++ b/promisor-remote.c
@@ -154,6 +154,7 @@ static int promisor_remote_config(const char *var, const char *value,
 		if (!r)
 			return 0;
 
+		FREE_AND_NULL(r->partial_clone_filter);
 		return git_config_string(&r->partial_clone_filter, var, value);
 	}
 
@@ -189,6 +190,7 @@ void promisor_remote_clear(struct promisor_remote_config *config)
 {
 	while (config->promisors) {
 		struct promisor_remote *r = config->promisors;
+		free(r->partial_clone_filter);
 		config->promisors = config->promisors->next;
 		free(r);
 	}
diff --git a/t/t7814-grep-recurse-submodules.sh b/t/t7814-grep-recurse-submodules.sh
index 167fe66150..55ed630e77 100755
--- a/t/t7814-grep-recurse-submodules.sh
+++ b/t/t7814-grep-recurse-submodules.sh
@@ -7,6 +7,7 @@ submodules.
 '
 
 TEST_CREATE_REPO_NO_TEMPLATE=1
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB=1
-- 
2.46.2.852.g229c0bf0e5.dirty