oggdemux: Handle errors from _get_next_page in _do_seek.

If the source element failed here, oggdemux would crash.

Fixes #623218.

diff --git a/ext/ogg/gstoggdemux.c b/ext/ogg/gstoggdemux.c
index 53ab457..bb5362f 100644 (file)
--- a/ext/ogg/gstoggdemux.c
+++ b/ext/ogg/gstoggdemux.c
@@ -2085,7 +2085,8 @@ gst_ogg_demux_do_seek (GstOggDemux * ogg, GstSegment * segment,
     if (ret == GST_FLOW_LIMIT) {
       GST_LOG_OBJECT (ogg, "reached limit");
       break;
-    }
+    } else if (ret != GST_FLOW_OK)
+      goto seek_error;
 
     /* get the stream */
     pad = gst_ogg_chain_get_stream (chain, ogg_page_serialno (&og));