From 9230a6af6a76b889a658c0c7c5050a9176c880a8 Mon Sep 17 00:00:00 2001
From: Stefan Sauer <ensonic@users.sf.net>
Date: Mon, 7 Oct 2013 22:51:04 +0200
Subject: [PATCH] discoverer: early return when we have no streams

---
 gst-libs/gst/pbutils/gstdiscoverer.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/gst-libs/gst/pbutils/gstdiscoverer.c b/gst-libs/gst/pbutils/gstdiscoverer.c
index 9808b9d9df..bfb50cd7c8 100644
--- a/gst-libs/gst/pbutils/gstdiscoverer.c
+++ b/gst-libs/gst/pbutils/gstdiscoverer.c
@@ -967,6 +967,10 @@ find_stream_for_node (GstDiscoverer * dc, const GstStructure * topology)
   guint i;
   GList *tmp;
 
+  if (!dc->priv->streams) {
+    return NULL;
+  }
+
   if (!gst_structure_id_has_field (topology, _TOPOLOGY_PAD_QUARK)) {
     GST_DEBUG ("Could not find pad for node %" GST_PTR_FORMAT, topology);
     return NULL;
@@ -975,11 +979,6 @@ find_stream_for_node (GstDiscoverer * dc, const GstStructure * topology)
   gst_structure_id_get (topology, _TOPOLOGY_PAD_QUARK,
       GST_TYPE_PAD, &pad, NULL);
 
-  if (!dc->priv->streams) {
-    gst_object_unref (pad);
-    return NULL;
-  }
-
   for (i = 0, tmp = dc->priv->streams; tmp; tmp = tmp->next, i++) {
     ps = (PrivateStream *) tmp->data;