[gnome-photos] source: The "object" property can be NULL

[Debarshi Ray <debarshir src gnome org>]

commit 973ef2f837b6355e1cb3073ca3a4c407e36248b2
Author: Debarshi Ray <debarshir gnome org>
Date:   Sat May 12 15:29:42 2012 +0200

    source: The "object" property can be NULL

 src/photos-source.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-source.c b/src/photos-source.c
index 1bfeb94..2393fe1 100644
--- a/src/photos-source.c
+++ b/src/photos-source.c
@@ -138,6 +138,9 @@ photos_source_set_property (GObject *object, guint prop_id, const GValue *value,
         const gchar *provider_name;
 
         object = GOA_OBJECT (g_value_get_object (value));
+        if (object == NULL)
+          break;
+
         account = goa_object_peek_account (object);
 
         id = goa_account_get_id (account);