[glib-networking/tls-database] gnutls: Fix a couple bugs in GTlsDatabaseGnutls::verify_chain()

[Stefan Walter <stefw src gnome org>]

commit 17490a4bd7d1d33548c1884155e26cbbd4006d55
Author: Stef Walter <stefw collabora co uk>
Date:   Tue Dec 28 10:30:31 2010 -0600

    gnutls: Fix a couple bugs in GTlsDatabaseGnutls::verify_chain()
    
     * Initialize anchor correctly.
     * Check correctly for lookup errors.

 tls/gnutls/gtlsdatabase-gnutls.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/tls/gnutls/gtlsdatabase-gnutls.c b/tls/gnutls/gtlsdatabase-gnutls.c
index b8c1248..6c3a642 100644
--- a/tls/gnutls/gtlsdatabase-gnutls.c
+++ b/tls/gnutls/gtlsdatabase-gnutls.c
@@ -135,9 +135,10 @@ build_certificate_chain (GTlsDatabaseGnutls      *self,
                                                   purpose, identity, cancellable, error))
         {
           g_tls_certificate_gnutls_set_issuer (certificate, NULL);
+          *anchor = certificate;
           return STATUS_ANCHORED;
         }
-      else if (error)
+      else if (*error)
         {
           return STATUS_FAILURE;
         }