From 67ce1079723b064479deb62304cdb2af2d40d5c1 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Mon, 26 Mar 2012 17:04:40 +1100
Subject: [PATCH] sshbuf_free(NULL) should be a no-op

---
 ssh/sshbuf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ssh/sshbuf.c b/ssh/sshbuf.c
index dc3359d..b553e7d 100644
--- a/ssh/sshbuf.c
+++ b/ssh/sshbuf.c
@@ -87,6 +87,8 @@ sshbuf_free(struct sshbuf *buf)
 {
 	int freeme;
 
+	if (buf == NULL)
+		return;
 	if (sshbuf_check_sanity(buf) == 0)
 		bzero(buf->d, buf->alloc);
 	free(buf->d);