[libpeas] Fix segfault if pygobject could not be initialized

[Steve Frécinaux <sfre src gnome org>]

commit 95c8d02ce8480c53bd1c21c53e656f52a38b465e
Author: Garrett Regier <alias301 gmail com>
Date:   Fri Mar 25 08:17:51 2011 -0700

    Fix segfault if pygobject could not be initialized

 loaders/python/peas-plugin-loader-python.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/loaders/python/peas-plugin-loader-python.c b/loaders/python/peas-plugin-loader-python.c
index 54b39cd..eb59ffa 100644
--- a/loaders/python/peas-plugin-loader-python.c
+++ b/loaders/python/peas-plugin-loader-python.c
@@ -323,11 +323,14 @@ peas_python_shutdown (PeasPluginLoaderPython *loader)
       loader->priv->idle_gc = 0;
     }
 
-  run_gc_protected ();
+  if (!loader->priv->init_failed)
+    run_gc_protected ();
 
   if (loader->priv->must_finalize_python)
     {
-      pyg_gil_state_ensure ();
+      if (!loader->priv->init_failed)
+        pyg_gil_state_ensure ();
+
       Py_Finalize ();
     }
 }