From: Josef 'Jeff' Sipek <jeff.sipek@dovecot.fi>
Date: Tue, 6 Jun 2017 09:49:00 +0000 (+0300)
Subject: lib: [io]_stream_destroy(NULL) should be a no-op
X-Git-Tag: 2.3.0.rc1~983
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d6684856fb99e51bc22a6346e08b2d81c996f963;p=thirdparty%2Fdovecot%2Fcore.git

lib: [io]_stream_destroy(NULL) should be a no-op
---

diff --git a/src/lib/istream.c b/src/lib/istream.c
index 6a2cfe0ced..cf5f81a382 100644
--- a/src/lib/istream.c
+++ b/src/lib/istream.c
@@ -35,6 +35,9 @@ static void i_stream_close_full(struct istream *stream, bool close_parents)
 
 void i_stream_destroy(struct istream **stream)
 {
+	if (*stream == NULL)
+		return;
+
 	i_stream_close_full(*stream, FALSE);
 	i_stream_unref(stream);
 }
diff --git a/src/lib/ostream.c b/src/lib/ostream.c
index 50bd479783..175e417b04 100644
--- a/src/lib/ostream.c
+++ b/src/lib/ostream.c
@@ -61,6 +61,9 @@ static void o_stream_close_full(struct ostream *stream, bool close_parents)
 
 void o_stream_destroy(struct ostream **stream)
 {
+	if (*stream == NULL)
+		return;
+
 	o_stream_close_full(*stream, FALSE);
 	o_stream_unref(stream);
 }