svn commit: r333615 - stable/11/sys/netgraph

[Sean Bruno]

Author: sbruno
Date: Mon May 14 22:56:41 2018
New Revision: 333615
URL: https://svnweb.freebsd.org/changeset/base/333615

Log:
  MFC r303848
  
  Repair trivial panic in ng_uncallout.  Fixes bugzilla #211031
  
  PR:		211031
  Approved by:	re (gjb)

Modified:
  stable/11/sys/netgraph/ng_base.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/netgraph/ng_base.c
==============================================================================
--- stable/11/sys/netgraph/ng_base.c	Mon May 14 21:57:45 2018	(r333614)
+++ stable/11/sys/netgraph/ng_base.c	Mon May 14 22:56:41 2018	(r333615)
@@ -3815,7 +3815,7 @@ ng_uncallout(struct callout *c, node_p node)
 	item = c->c_arg;
 	/* Do an extra check */
 	if ((rval > 0) && (c->c_func == &ng_callout_trampoline) &&
-	    (NGI_NODE(item) == node)) {
+	    (item != NULL) && (NGI_NODE(item) == node)) {
 		/*
 		 * We successfully removed it from the queue before it ran
 		 * So now we need to unreference everything that was