From 6042793c2671253389ef440fe52e92339bfc9446 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian.droege@collabora.co.uk>
Date: Wed, 4 Nov 2009 17:15:59 +0100
Subject: [PATCH] ghostpad: Make sure that nobody sets the proxypad or ghostpad
 itself as target

Doing this will lead to very interesting crashes, like stack overflows.
---
 gst/gstghostpad.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gst/gstghostpad.c b/gst/gstghostpad.c
index 2eb1a0f24e..e544a02b7b 100644
--- a/gst/gstghostpad.c
+++ b/gst/gstghostpad.c
@@ -1182,6 +1182,8 @@ gst_ghost_pad_set_target (GstGhostPad * gpad, GstPad * newtarget)
   GstPadLinkReturn lret;
 
   g_return_val_if_fail (GST_IS_GHOST_PAD (gpad), FALSE);
+  g_return_val_if_fail (GST_PAD_CAST (gpad) != newtarget, FALSE);
+  g_return_val_if_fail (newtarget != GST_PROXY_PAD_INTERNAL (gpad), FALSE);
 
   /* no need for locking, the internal pad's lifecycle is directly linked to the
    * ghostpad's */