nle: Avoid unsetting srcpad target after the srcpad is already freed

That leaded to segfaults

diff --git a/plugins/nle/nlesource.c b/plugins/nle/nlesource.c
index fcb9850..681e8f6 100644 (file)
--- a/plugins/nle/nlesource.c
+++ b/plugins/nle/nlesource.c
@@ -214,8 +214,9 @@ element_pad_removed_cb (GstElement * element G_GNUC_UNUSED, GstPad * pad,
 
     GST_DEBUG_OBJECT (source, "Clearing up ghostpad");
 
-    nle_object_ghost_pad_set_target (NLE_OBJECT (source), nleobject->srcpad,
-        NULL);
+    if (nleobject->srcpad)
+      nle_object_ghost_pad_set_target (NLE_OBJECT (source), nleobject->srcpad,
+          NULL);
     priv->ghostedpad = NULL;
   } else {
     GST_DEBUG_OBJECT (source, "The removed pad is NOT our controlled pad");