diff -Naur asterisk-11.16.0/apps/app_chanspy.c asterisk-11.16.0-spylockpatch/apps/app_chanspy.c
--- asterisk-11.16.0/apps/app_chanspy.c	2014-05-13 00:02:34.000000000 +0200
+++ asterisk-11.16.0-spylockpatch/apps/app_chanspy.c	2015-08-19 14:28:26.525911949 +0200
@@ -557,6 +557,7 @@
 	struct ast_autochan *spyee_bridge_autochan = NULL;
 	const char *spyer_name;
 	struct ast_channel *chans[] = { chan, spyee_autochan->chan };
+	struct ast_channel *spyee_autochan_chan;
 
 	ast_channel_lock(chan);
 	spyer_name = ast_strdupa(ast_channel_name(chan));
@@ -569,9 +570,10 @@
 		return 0;
 	}
 
-	ast_channel_lock(spyee_autochan->chan);
+	spyee_autochan_chan = spyee_autochan->chan;
+	ast_channel_lock(spyee_autochan_chan);
 	name = ast_strdupa(ast_channel_name(spyee_autochan->chan));
-	ast_channel_unlock(spyee_autochan->chan);
+	ast_channel_unlock(spyee_autochan_chan);
 
 	ast_verb(2, "Spying on channel %s\n", name);
 	/*** DOCUMENTATION