From: Josef 'Jeff' Sipek <jeff.sipek@dovecot.fi>
Date: Thu, 9 Nov 2017 15:39:25 +0000 (-0500)
Subject: ssl-iostream: ssl_iostream_destroy(NULL) should be a no-op
X-Git-Tag: 2.3.1~86
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ba110cd15ce4f9115d80dc8b2557ff2225cb741b;p=thirdparty%2Fdovecot%2Fcore.git

ssl-iostream: ssl_iostream_destroy(NULL) should be a no-op
---

diff --git a/src/lib-ssl-iostream/iostream-ssl.c b/src/lib-ssl-iostream/iostream-ssl.c
index cab0f8d8c2..da9184c4c4 100644
--- a/src/lib-ssl-iostream/iostream-ssl.c
+++ b/src/lib-ssl-iostream/iostream-ssl.c
@@ -161,6 +161,10 @@ void ssl_iostream_destroy(struct ssl_iostream **_ssl_io)
 {
 	struct ssl_iostream *ssl_io = *_ssl_io;
 
+	if (_ssl_io == NULL || *_ssl_io == NULL)
+		return;
+
+	ssl_io = *_ssl_io;
 	*_ssl_io = NULL;
 	ssl_vfuncs->destroy(ssl_io);
 }