[evolution-data-server/gnome-3-28] [CamelSMIMEContext] Fix a memory leak

[Milan Crha <mcrha src gnome org>]

commit ce9161290fa1cf0236d1921ceb67f13247d4b2e7
Author: Milan Crha <mcrha redhat com>
Date:   Wed Jul 4 12:13:24 2018 +0200

    [CamelSMIMEContext] Fix a memory leak

 src/camel/camel-smime-context.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
---
diff --git a/src/camel/camel-smime-context.c b/src/camel/camel-smime-context.c
index ec7832003..8a8cd8f39 100644
--- a/src/camel/camel-smime-context.c
+++ b/src/camel/camel-smime-context.c
@@ -1522,10 +1522,22 @@ fail:
        return valid;
 }
 
+static void
+camel_smime_context_finalize (GObject *object)
+{
+       CamelSMIMEContext *smime = CAMEL_SMIME_CONTEXT (object);
+
+       g_free (smime->priv->encrypt_key);
+
+       /* Chain up to parent's method. */
+       G_OBJECT_CLASS (camel_smime_context_parent_class)->finalize (object);
+}
+
 static void
 camel_smime_context_class_init (CamelSMIMEContextClass *class)
 {
        CamelCipherContextClass *cipher_context_class;
+       GObjectClass *object_class;
 
        g_type_class_add_private (class, sizeof (CamelSMIMEContextPrivate));
 
@@ -1539,6 +1551,9 @@ camel_smime_context_class_init (CamelSMIMEContextClass *class)
        cipher_context_class->verify_sync = smime_context_verify_sync;
        cipher_context_class->encrypt_sync = smime_context_encrypt_sync;
        cipher_context_class->decrypt_sync = smime_context_decrypt_sync;
+
+       object_class = G_OBJECT_CLASS (class);
+       object_class->finalize = camel_smime_context_finalize;
 }
 
 static void