From e3399e60a2e46007e229498de329a9f8d642eaba Mon Sep 17 00:00:00 2001
From: Stefan Kost <ensonic@users.sourceforge.net>
Date: Tue, 27 May 2008 20:19:17 +0000
Subject: [PATCH] libs/gst/controller/gstcontroller.c: Add parameter guards.

Original commit message from CVS:
* libs/gst/controller/gstcontroller.c:
Add parameter guards.
---
 ChangeLog                           | 5 +++++
 libs/gst/controller/gstcontroller.c | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 1fee5b523e..ebb379871e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-05-27  Stefan Kost  <ensonic@users.sf.net>
+
+	* libs/gst/controller/gstcontroller.c:
+	  Add parameter guards.
+
 2008-05-27  Stefan Kost  <ensonic@users.sf.net>
 
 	* tests/check/gst/gstpipeline.c:
diff --git a/libs/gst/controller/gstcontroller.c b/libs/gst/controller/gstcontroller.c
index 61833c6114..16d05e4f20 100644
--- a/libs/gst/controller/gstcontroller.c
+++ b/libs/gst/controller/gstcontroller.c
@@ -559,6 +559,9 @@ gst_controller_get_control_source (GstController * self, gchar * property_name)
   GstControlledProperty *prop;
   GstControlSource *ret = NULL;
 
+  g_return_val_if_fail (GST_IS_CONTROLLER (self), NULL);
+  g_return_val_if_fail (property_name, NULL);
+
   g_mutex_lock (self->lock);
   if ((prop = gst_controller_find_controlled_property (self, property_name))) {
     ret = prop->csource;