From: Fletcher T. Penney <fletcher@fletcherpenney.net>
Date: Fri, 17 Aug 2018 19:38:37 +0000 (-0400)
Subject: Avoid potential error with stack_free
X-Git-Tag: 6.4.0^2~4
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e2359ce50d70a452339e6119db844feecc39ea3c;p=multimarkdown

Avoid potential error with stack_free
---

diff --git a/Sources/libMultiMarkdown/stack.c b/Sources/libMultiMarkdown/stack.c
index bae24d6..73441e0 100644
--- a/Sources/libMultiMarkdown/stack.c
+++ b/Sources/libMultiMarkdown/stack.c
@@ -87,8 +87,10 @@ stack * stack_new(int startingSize) {
 
 /// Free the stack
 void stack_free(stack * s) {
-	free(s->element);
-	free(s);
+	if (s) {
+		free(s->element);
+		free(s);
+	}
 }