1 file changed, 12 insertions, 11 deletions
diff --git a/source/ui-stats.c b/source/ui-stats.c
index 55ed370..f200b63 100644
--- a/source/ui-stats.c
+++ b/source/ui-stats.c
@@ -202,13 +202,13 @@ static void add_commit(struct string_list *authors, struct commitinfo *info,
 }
 
 /*
- * Count the commits in the displayed window, returning a list of authors
- * whose util field holds a struct authorstat. Merge commits are left out, so
- * that pulling a branch in does not credit the merger with its commits.
+ * Count the commits in the displayed window into authors, whose util fields
+ * hold a struct authorstat, and return non-zero once an error page has
+ * answered instead. Merge commits are left out, so that pulling a branch in
+ * does not credit the merger with its commits.
  */
-static struct string_list collect_stats(const struct cgit_period *period)
+static int collect_stats(const struct cgit_period *period, struct string_list *authors)
 {
-	struct string_list authors;
 	struct rev_info rev;
 	struct commit *commit;
 	// setup_revisions reads these the way main does, skipping the first
@@ -239,24 +239,23 @@ static struct string_list collect_stats(const struct cgit_period *period)
 	// whole history and discarding older commits. The check below still
 	// bounds the period edge exactly.
 	rev.max_age = since;
-	memset(&authors, 0, sizeof(authors));
 	// A failed setup leaves the walk holding freed commits, so it must
 	// not be read from.
 	if (prepare_revision_walk(&rev)) {
 		cgit_print_error_page(500, "Internal Server Error", "Unable to read the history");
-		return authors;
+		return -1;
 	}
 	while ((commit = get_revision(&rev))) {
 		struct commitinfo *info = cgit_parse_commit(commit);
 
 		if ((time_t)info->committer_date >= since)
-			add_commit(&authors, info, period);
+			add_commit(authors, info, period);
 
 		cgit_free_commitinfo(info);
 		release_commit_memory(the_repository->parsed_objects, commit);
 		commit->parents = NULL;
 	}
-	return authors;
+	return 0;
 }
 
 static int cmp_total_commits(const void *a, const void *b)
@@ -431,7 +430,8 @@ const char *cgit_find_stats_periodname(int idx)
 
 void cgit_show_stats(void)
 {
-	struct string_list authors, labels;
+	struct string_list authors = STRING_LIST_INIT_NODUP;
+	struct string_list labels;
 	const struct cgit_period *period;
 	int top, period_index;
 	const char *code = "w";
@@ -448,7 +448,8 @@ void cgit_show_stats(void)
 		cgit_print_error_page(400, "Bad Request", "Statistics type disabled: %s", period->name);
 		return;
 	}
-	authors = collect_stats(period);
+	if (collect_stats(period, &authors))
+		return;
 	qsort(authors.items, authors.nr, sizeof(struct string_list_item), cmp_total_commits);
 
 	top = ctx.qry.ofs;