From 7dd0b6cafc7e151713d379a0e171197be43fb7d0 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Wed, 21 Jan 2015 17:35:32 -0800
Subject: Avoid free(0) for link titles and URLs.

---
 src/node.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/node.c')

diff --git a/src/node.c b/src/node.c
index 9cdfbe9..fe3dac3 100644
--- a/src/node.c
+++ b/src/node.c
@@ -122,8 +122,12 @@ void S_free_nodes(cmark_node *e)
 			break;
 		case NODE_LINK:
 		case NODE_IMAGE:
-			free(e->as.link.url);
-			free(e->as.link.title);
+			if (e->as.link.url) {
+				free(e->as.link.url);
+			}
+			if (e->as.link.title) {
+				free(e->as.link.title);
+			}
 			break;
 		default:
 			break;
-- 
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