close_lock_file(): exit (successfully) if file is already closed

diff --git a/fast-import.c b/fast-import.c
index 487f1f81ac170acf87bae2801f6472c0768e3e24..96b0f4236a2083044e4ae1dfa3b8180e3e586ba1 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -878,7 +878,7 @@ static void start_packfile(void)
        pack_size = sizeof(hdr);
        object_count = 0;
 
-       all_packs = xrealloc(all_packs, sizeof(*all_packs) * (pack_id + 1));
+       REALLOC_ARRAY(all_packs, pack_id + 1);
        all_packs[pack_id] = p;
 }