[grilo-plugins] upnp: Really unregister disappearing sources

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 1dd612f7040c1c7728b4cc6ce1f12b38ae17214c
Author: Emanuele Aina <emanuele aina collabora com>
Date:   Thu Jun 20 12:18:53 2013 +0200

    upnp: Really unregister disappearing sources
    
    Unregister the corresponding GrlSource when a UPnP server is being
    turned off. It seems that the _unregister() call got lost in 39437df.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=702730

 src/upnp/grl-upnp.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/src/upnp/grl-upnp.c b/src/upnp/grl-upnp.c
index d433755..e937ef3 100644
--- a/src/upnp/grl-upnp.c
+++ b/src/upnp/grl-upnp.c
@@ -521,7 +521,14 @@ device_unavailable_cb (GUPnPControlPoint *cp,
   /* Check first if source is registered */
   source = grl_registry_lookup_source (registry, source_id);
   if (source) {
+    GError *error = NULL;
     GRL_DEBUG ("Unregistered source %s", source_id);
+    grl_registry_unregister_source (registry, source, &error);
+    if (error)
+      {
+        g_warning ("Failed to unregister source %s: %s", source_id, error->message);
+        g_error_free (error);
+      }
     g_free (source_id);
     return;
   }