Comment 2 for bug 1229612

StacktraceTop:
 g_icon_serialize (icon=0x0) at /build/buildd/glib2.0-2.37.93/./gio/gicon.c:665
 sound_menu_add_player (self=0x9bf3b50, player=0x9c132f0) at /build/buildd/indicator-sound-12.10.2+13.10.20130918/obj-i686-linux-gnu/src/sound-menu.c:340
 g_hash_table_foreach (hash_table=0x9be9448, func=func@entry=0x804fc40 <___lambda2__gh_func>, user_data=user_data@entry=0x9c13c00) at /build/buildd/glib2.0-2.37.93/./glib/ghash.c:1526
 indicator_sound_service_player_added (player=0x9c132f0, self=0x9bef020) at /build/buildd/indicator-sound-12.10.2+13.10.20130918/obj-i686-linux-gnu/src/service.c:1773
 _indicator_sound_service_player_added_media_player_list_player_added (_sender=0x9beeb98, player=0x9c132f0, self=0x9bef020) at /build/buildd/indicator-sound-12.10.2+13.10.20130918/obj-i686-linux-gnu/src/service.c:350