tools lib traceevent: Fix error path on process_array()

free_token() under out_free should be called with 'token' and no need
to set *tok to NULL since it's set already.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1348037924-17568-2-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/lib/traceevent/event-parse.c

@@ -1595,8 +1595,7 @@ process_array(struct event_format *event, struct print_arg *top, char **tok)
 	return type;
 
 out_free:
-	free_token(*tok);
-	*tok = NULL;
+	free_token(token);
 	free_arg(arg);
 	return EVENT_ERROR;
 }