[gnome-keyring] egg-hkdf: Fix gcry_md_ht_t leak in egg_hkdf_perform

[Stefan Walter <stefw src gnome org>]

commit c2870de15ba639b6a02916a89be07274c2b5895b
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Wed Oct 1 22:44:13 2014 +0200

    egg-hkdf: Fix gcry_md_ht_t leak in egg_hkdf_perform
    
    The 'md2' gcry_md_ht_t variable is opened with gcry_md_open() in that
    method but is never closed, which causes a leak.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=738508

 egg/egg-hkdf.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/egg/egg-hkdf.c b/egg/egg-hkdf.c
index b5e2fe2..790f01c 100644
--- a/egg/egg-hkdf.c
+++ b/egg/egg-hkdf.c
@@ -102,6 +102,7 @@ egg_hkdf_perform (const gchar *hash_algo, gconstpointer input, gsize n_input,
                        break;
        }
 
+       gcry_md_close (md2);
        g_free (alloc);
        gcry_free (buffer);
        return TRUE;