[gstreamermm] fixed bus_sync_handler method

[Marcin Kolny <mkolny src gnome org>]

commit 7db305d98964d731c601b4a7a77159aad4cca399
Author: Marcin Kolny <marcin kolny flytronic pl>
Date:   Tue Mar 11 14:47:16 2014 +0100

    fixed bus_sync_handler method
    
    Signed-off-by: Marcin Kolny <marcin kolny flytronic pl>

 gstreamer/src/bus.ccg |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gstreamer/src/bus.ccg b/gstreamer/src/bus.ccg
index f4b47ae..a9711da 100644
--- a/gstreamer/src/bus.ccg
+++ b/gstreamer/src/bus.ccg
@@ -95,7 +95,7 @@ void Bus::set_sync_handler(const SlotMessageSync& slot)
   gst_bus_set_sync_handler(gobj(), 0, 0, 0);
 
   slot_copy = slot;
-  gst_bus_set_sync_handler(gobj(), &Bus_Message_Sync_gstreamermm_callback, &slot_copy, 
&Bus_Message_gstreamermm_callback_destroy);
+  gst_bus_set_sync_handler(gobj(), &Bus_Message_Sync_gstreamermm_callback, &slot_copy, NULL);
 }
 
 } //namespace Gst