[glib-networking/mcatanzaro/tls1.2] Ensure gnutls_certificate_allocate_credentials() is successful

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 7c8eb17c25572f6bb8efb5beee0e33f8b33cf163
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Aug 18 17:37:40 2019 -0500

    Ensure gnutls_certificate_allocate_credentials() is successful
    
    This should never happen, and it does never happen in my extensive
    testing. But for robustness, we really should check to be sure it's not
    happening.

 tls/gnutls/gtlsconnection-gnutls.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/tls/gnutls/gtlsconnection-gnutls.c b/tls/gnutls/gtlsconnection-gnutls.c
index 4e883a7..d2c7e7e 100644
--- a/tls/gnutls/gtlsconnection-gnutls.c
+++ b/tls/gnutls/gtlsconnection-gnutls.c
@@ -89,9 +89,7 @@ static void
 g_tls_connection_gnutls_init (GTlsConnectionGnutls *gnutls)
 {
   GTlsConnectionGnutlsPrivate *priv = g_tls_connection_gnutls_get_instance_private (gnutls);
-  gint unique_id;
-
-  gnutls_certificate_allocate_credentials (&priv->creds);
+  int unique_id;
 
   unique_id = g_atomic_int_add (&unique_interaction_id, 1);
   priv->interaction_id = g_strdup_printf ("gtls:%d", unique_id);
@@ -198,6 +196,7 @@ g_tls_connection_gnutls_initable_init (GInitable     *initable,
   gboolean client = G_IS_TLS_CLIENT_CONNECTION (gnutls);
   guint flags = client ? GNUTLS_CLIENT : GNUTLS_SERVER;
   int status;
+  int ret;
 
   g_object_get (gnutls,
                 "base-io-stream", &base_io_stream,
@@ -210,6 +209,10 @@ g_tls_connection_gnutls_initable_init (GInitable     *initable,
   if (base_socket)
     flags |= GNUTLS_DATAGRAM;
 
+  ret = gnutls_certificate_allocate_credentials (&priv->creds);
+  if (ret != GNUTLS_E_SUCCESS)
+    return FALSE;
+
   gnutls_init (&priv->session, flags);
 
   gnutls_session_set_ptr (priv->session, gnutls);