static char *read_line_from_git_path(const char *filename)
{
struct strbuf buf = STRBUF_INIT;
- FILE *fp = fopen(git_path("%s", filename), "r");
+ FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
+
if (!fp) {
strbuf_release(&buf);
return NULL;