commit 9aae7366832613bbb94f56a2465380f5c2f56e7f
from: Omar Polo <op@omarpolo.com>
date: Sun Sep 04 15:35:09 2022 UTC

got_commit_graph_close: free tailq contents

The tailq should ideally be empty when we reach got_commit_graph_close,
but consumer code may exit the commit graph loop earlier.

spotted by and ok stsp@

commit - 442ede73eadb025cdc45bede186bf31aee869dad
commit + 9aae7366832613bbb94f56a2465380f5c2f56e7f
blob - 01dc8264285fe44769741f2870eda27d3d1e6b16
blob + ba9fa9fb981f796ba43c099da5e0ec23e4894c16
--- lib/commit_graph.c
+++ lib/commit_graph.c
@@ -534,6 +534,13 @@ done:
 void
 got_commit_graph_close(struct got_commit_graph *graph)
 {
+	struct got_commit_graph_node *node;
+
+	while ((node = TAILQ_FIRST(&graph->iter_list))) {
+		TAILQ_REMOVE(&graph->iter_list, node, entry);
+		free(node);
+	}
+
 	if (graph->open_branches)
 		got_object_idset_free(graph->open_branches);
 	if (graph->node_ids)