From 64e0f2d80ae454255c6e5d6aeb96c2d78058cc65 Mon Sep 17 00:00:00 2001
From: Victor Fernandes <victorvalenca@gmail.com>
Date: Mon, 13 Feb 2017 16:58:51 -0500
Subject: [PATCH] b_free() fix crash on NULL

---
 buffer.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/buffer.c b/buffer.c
index a0a848e..ed37a2d 100644
--- a/buffer.c
+++ b/buffer.c
@@ -548,6 +548,8 @@ Buffer* b_pack(Buffer* const pBD) {
  * Return value: N/A
  */
 void b_free(Buffer* const pBD) {
-    free(pBD->cb_head);
-    free(pBD);
+    if (pBD){
+        free(pBD->cb_head);
+        free(pBD);
+    }
 }