From 04beac6e0f14879415e4eab963f61933e8e2ae02 Mon Sep 17 00:00:00 2001
From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Date: Thu, 16 Jul 2015 16:47:05 -0400
Subject: [PATCH] uploadelement: Protect against NULL pointer

I notice that if you stop the pipeline during a renegotiation
the upload may be NULL while an allocation query is being run.
In that scenario, returning FALSE to the allocation query is the
best thing.
---
 ext/gl/gstgluploadelement.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ext/gl/gstgluploadelement.c b/ext/gl/gstgluploadelement.c
index be01143aa3..368c2c93c9 100644
--- a/ext/gl/gstgluploadelement.c
+++ b/ext/gl/gstgluploadelement.c
@@ -145,6 +145,9 @@ _gst_gl_upload_element_propose_allocation (GstBaseTransform * bt,
 {
   GstGLUploadElement *upload = GST_GL_UPLOAD_ELEMENT (bt);
 
+  if (!upload->upload)
+    return FALSE;
+
   gst_gl_upload_propose_allocation (upload->upload, decide_query, query);
 
   return TRUE;