commit-graph: add free_commit_graph

diff --git a/commit-graph.c b/commit-graph.c
index 1ea701ed6985539246279fc0e465db5eb0e4512d..143a587581c267a342c05bbab64b4369bb911c01 100644 (file)
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -231,16 +231,8 @@ static int prepare_commit_graph(void)
 
 static void close_commit_graph(void)
 {
-       if (!commit_graph)
-               return;
-
-       if (commit_graph->graph_fd >= 0) {
-               munmap((void *)commit_graph->data, commit_graph->data_len);
-               commit_graph->data = NULL;
-               close(commit_graph->graph_fd);
-       }
-
-       FREE_AND_NULL(commit_graph);
+       free_commit_graph(commit_graph);
+       commit_graph = NULL;
 }
 
 static int bsearch_graph(struct commit_graph *g, struct object_id *oid, uint32_t *pos)
@@ -1033,3 +1025,15 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
 
        return verify_commit_graph_error;
 }
+
+void free_commit_graph(struct commit_graph *g)
+{
+       if (!g)
+               return;
+       if (g->graph_fd >= 0) {
+               munmap((void *)g->data, g->data_len);
+               g->data = NULL;
+               close(g->graph_fd);
+       }
+       free(g);
+}