From bd944e6e1854df9aa6002fed015226d6298029b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Mon, 5 Feb 2018 09:54:57 +0100
Subject: [PATCH] gcrypt-util: fix memleak

---
 src/basic/gcrypt-util.c | 2 +-
 src/basic/gcrypt-util.h | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/basic/gcrypt-util.c b/src/basic/gcrypt-util.c
index 1bfb776725..34d0d399b7 100644
--- a/src/basic/gcrypt-util.c
+++ b/src/basic/gcrypt-util.c
@@ -42,7 +42,7 @@ void initialize_libgcrypt(bool secmem) {
 }
 
 int string_hashsum(const char *s, size_t len, int md_algorithm, char **out) {
-        gcry_md_hd_t md = NULL;
+        _cleanup_(gcry_md_closep) gcry_md_hd_t md = NULL;
         size_t hash_size;
         void *hash;
         char *enc;
diff --git a/src/basic/gcrypt-util.h b/src/basic/gcrypt-util.h
index 69faf08e56..714cae673b 100644
--- a/src/basic/gcrypt-util.h
+++ b/src/basic/gcrypt-util.h
@@ -20,6 +20,8 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
+#pragma once
+
 #include <errno.h>
 #include <stdbool.h>
 #include <stddef.h>
@@ -27,8 +29,12 @@
 #if HAVE_GCRYPT
 #include <gcrypt.h>
 
+#include "macro.h"
+
 void initialize_libgcrypt(bool secmem);
 int string_hashsum(const char *s, size_t len, int md_algorithm, char **out);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(gcry_md_hd_t, gcry_md_close);
 #endif
 
 static inline int string_hashsum_sha224(const char *s, size_t len, char **out) {