[gnome-power-manager] trivial: fix a crasher in the self test code

[Richard Hughes <rhughes src gnome org>]

commit f120a024aeb68438097b496ea2e7c59cfd81bc45
Author: Richard Hughes <richard hughsie com>
Date:   Mon Sep 7 13:16:39 2009 +0100

    trivial: fix a crasher in the self test code

 src/gpm-session.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/gpm-session.c b/src/gpm-session.c
index b0ab64f..c656cfc 100644
--- a/src/gpm-session.c
+++ b/src/gpm-session.c
@@ -479,7 +479,8 @@ gpm_session_finalize (GObject *object)
 
 	g_object_unref (session->priv->proxy);
 	g_object_unref (session->priv->proxy_presence);
-	g_object_unref (session->priv->proxy_client_private);
+	if (session->priv->proxy_client_private != NULL)
+		g_object_unref (session->priv->proxy_client_private);
 	g_object_unref (session->priv->proxy_prop);
 
 	G_OBJECT_CLASS (gpm_session_parent_class)->finalize (object);