From 5d85cf384f7b6612121c7d30bfea9e1ea4c8e426 Mon Sep 17 00:00:00 2001
From: Kyle Banker <kylebanker@gmail.com>
Date: Wed, 16 Dec 2009 14:14:15 -0500
Subject: [PATCH] minor: free buffer on invalid doc

---
 ext/cbson/cbson.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ext/cbson/cbson.c b/ext/cbson/cbson.c
index 15d002f..56e95e2 100644
--- a/ext/cbson/cbson.c
+++ b/ext/cbson/cbson.c
@@ -459,6 +459,7 @@ static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys) {
 
     // make sure that length doesn't exceed 4MB
     if (length > 4 * 1024 * 1024) {
+      buffer_free(buffer);
       rb_raise(InvalidDocument, "Document too large: BSON documents are limited to 4MB.");
       return;
     }