jitterbuffer: Make src_query MT-safe

It is possible that the element might be going down while the event arrives

diff --git a/gst/rtpmanager/gstrtpjitterbuffer.c b/gst/rtpmanager/gstrtpjitterbuffer.c
index 2d132f2..260aba5 100644 (file)
--- a/gst/rtpmanager/gstrtpjitterbuffer.c
+++ b/gst/rtpmanager/gstrtpjitterbuffer.c
@@ -2084,6 +2084,8 @@ gst_rtp_jitter_buffer_query (GstPad * pad, GstQuery * query)
   gboolean res = FALSE;
 
   jitterbuffer = GST_RTP_JITTER_BUFFER (gst_pad_get_parent (pad));
+  if (G_UNLIKELY (jitterbuffer == NULL))
+    return FALSE;
   priv = jitterbuffer->priv;
 
   switch (GST_QUERY_TYPE (query)) {