[rygel] core: never return null children list; use empty list instead

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 7a1773aeadc83e2081ccb4f61aed2eaf5a918710
Author: Jens Georg <mail jensge org>
Date:   Sun Jun 21 02:04:59 2009 +0200

    core: never return null children list; use empty list instead

 src/rygel/rygel-media-db.vala |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)
---
diff --git a/src/rygel/rygel-media-db.vala b/src/rygel/rygel-media-db.vala
index 6b28942..61bcf43 100644
--- a/src/rygel/rygel-media-db.vala
+++ b/src/rygel/rygel-media-db.vala
@@ -429,11 +429,12 @@ public class Rygel.MediaDB : Object {
         item.color_depth = statement.column_int (15);
     }
 
-    public Gee.ArrayList<MediaObject>? get_children (string object_id,
+    public Gee.ArrayList<MediaObject> get_children (string object_id,
                                                       uint offset,
                                                       uint max_count) {
         Statement statement;
-        Gee.ArrayList<MediaObject> children = null;
+        Gee.ArrayList<MediaObject> children =
+                                            new Gee.ArrayList<MediaObject> ();
         var rc = db.prepare_v2 (CHILDREN_GET_STRING,
                                 -1,
                                 out statement,
@@ -443,10 +444,6 @@ public class Rygel.MediaDB : Object {
             statement.bind_int64 (2, (int64)offset);
             statement.bind_int64 (3, (int64)max_count);
             while ((rc = statement.step ()) == Sqlite.ROW) {
-                if (children == null) {
-                    children = new Gee.ArrayList<MediaObject> ();
-                }
-
                 var child_id = statement.column_text (17);
                 children.add (get_object_from_statement (child_id, statement));
             }