From 1ede1ed68646d7b95481d1d595aa2c9757326edc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Janouch?= <p.janouch@gmail.com>
Date: Sun, 21 May 2017 17:11:16 +0200
Subject: [PATCH] Fix crash in print_tree()

---
 ell.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ell.c b/ell.c
index d73ddc1..9bf1927 100644
--- a/ell.c
+++ b/ell.c
@@ -416,7 +416,8 @@ print_tree (struct item *tree, int level) {
 			printf ("%*s", level, "");
 		if (iter->type == ITEM_STRING) {
 			print_string (iter->value);
-		} else if (iter->head->type == ITEM_STRING
+		} else if (iter->head
+			&& iter->head->type == ITEM_STRING
 			&& !strcmp (iter->head->value, "list")) {
 			printf ("[");
 			print_tree (iter->head->next, level + 1);