[libgdata] [youtube] Add missing precondition

[Philip Withnall <pwithnall src gnome org>]

commit bc6c4bd684b7996fac147b94d3e833093b3418d3
Author: Philip Withnall <philip tecnocode co uk>
Date:   Wed Aug 4 10:08:50 2010 +0100

    [youtube] Add missing precondition

 gdata/services/youtube/gdata-youtube-group.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gdata/services/youtube/gdata-youtube-group.c b/gdata/services/youtube/gdata-youtube-group.c
index c4feeb8..07c7015 100644
--- a/gdata/services/youtube/gdata-youtube-group.c
+++ b/gdata/services/youtube/gdata-youtube-group.c
@@ -203,6 +203,7 @@ void
 gdata_youtube_group_get_uploaded (GDataYouTubeGroup *self, GTimeVal *uploaded)
 {
 	g_return_if_fail (GDATA_IS_YOUTUBE_GROUP (self));
+	g_return_if_fail (uploaded != NULL);
 	*uploaded = self->priv->uploaded;
 }