[empathy: 57/99] Only distroy the video output if it exists

[Emilio Pozuelo Monfort <epm src gnome org>]

commit 11c8e825a7e2a11ae46b567ca3ddf709c0a0e6c8
Author: Sjoerd Simons <sjoerd simons collabora co uk>
Date:   Mon Mar 14 12:14:32 2011 +0000

    Only distroy the video output if it exists

 src/empathy-call-window.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/empathy-call-window.c b/src/empathy-call-window.c
index 9ed66d4..aa8bd5d 100644
--- a/src/empathy-call-window.c
+++ b/src/empathy-call-window.c
@@ -1877,7 +1877,8 @@ empathy_call_window_disconnected (EmpathyCallWindow *self,
 
       /* destroy the video output; it will be recreated when we'll redial */
       disconnect_video_output_motion_handler (self);
-      gtk_widget_destroy (priv->video_output);
+      if (priv->video_output != NULL)
+        gtk_widget_destroy (priv->video_output);
       priv->video_output = NULL;
 
       gtk_widget_show (priv->remote_user_avatar_widget);