From 85b90f1166ad85c8b9f07b91bd8a54f626edcc04 Mon Sep 17 00:00:00 2001
From: Adrian Ratiu <adrian.ratiu@collabora.com>
Date: Mon, 9 Mar 2026 15:37:31 +0200
Subject: [PATCH] repository: fix repo_init() memleak due to missing _clear()

There is an old pre-existing memory leak in repo_init() due to failing
to call clear_repository_format() in the error case.

It went undetected because a specific bug is required to trigger it:
enable a v1 extension in a repository with format v0. Obviously this
can only happen in a development environment, so it does not trigger
in normal usage, however the memleak is real and needs fixing.

Fix it by also calling clear_repository_format() in the error case.

Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 repository.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/repository.c b/repository.c
index 8717a1693a..f0bc2917d2 100644
--- a/repository.c
+++ b/repository.c
@@ -316,6 +316,7 @@ int repo_init(struct repository *repo,
 	return 0;
 
 error:
+	clear_repository_format(&format);
 	repo_clear(repo);
 	return -1;
 }