From 3a9fde7b24ee8f4d88a31ae33d85fd933df58786 Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Thu, 26 Mar 2020 13:50:52 +1100
Subject: [PATCH] glcontext: add context is valid precondition to get_thread()

---
 gst-libs/gst/gl/gstglcontext.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gst-libs/gst/gl/gstglcontext.c b/gst-libs/gst/gl/gstglcontext.c
index b76f246..4465249 100644
--- a/gst-libs/gst/gl/gstglcontext.c
+++ b/gst-libs/gst/gl/gstglcontext.c
@@ -801,6 +801,8 @@ gst_gl_context_get_thread (GstGLContext * context)
 {
   GThread *ret;
 
+  g_return_val_if_fail (GST_IS_GL_CONTEXT (context), NULL);
+
   GST_OBJECT_LOCK (context);
   ret = context->priv->active_thread;
   if (ret)
-- 
2.7.4