[gnome-photos] delete-notification: Be more strict about what is acceptable

[Debarshi Ray <debarshir src gnome org>]

commit 977f53183d6a438329859ac050bd9ab0c653b906
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Oct 30 14:02:24 2015 +0100

    delete-notification: Be more strict about what is acceptable

 src/photos-delete-notification.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-delete-notification.c b/src/photos-delete-notification.c
index eedd7df..4c0df29 100644
--- a/src/photos-delete-notification.c
+++ b/src/photos-delete-notification.c
@@ -258,6 +258,8 @@ photos_delete_notification_class_init (PhotosDeleteNotificationClass *class)
 void
 photos_delete_notification_new (GList *items)
 {
+  g_return_if_fail (items != NULL);
+
   g_object_new (PHOTOS_TYPE_DELETE_NOTIFICATION,
                 "column-spacing", 12,
                 "items", items,