mxf: add a return to fix the build when turning assert off

diff --git a/gst/mxf/mxfup.c b/gst/mxf/mxfup.c
index fa669d4..7d01725 100644 (file)
--- a/gst/mxf/mxfup.c
+++ b/gst/mxf/mxfup.c
@@ -524,6 +524,7 @@ mxf_up_get_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
   }
 
   g_assert_not_reached ();
+  return NULL;
 }
 
 static void