From 6c28f0bb768f30673a7c15d9ab493ed2dfe4d5e3 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Mon, 26 May 2008 16:38:28 +0200
Subject: [PATCH] Fix out-of-band deref of (potentially) gone threads structure

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fio.c b/fio.c
index c17ea3c3..37a425e8 100644
--- a/fio.c
+++ b/fio.c
@@ -101,6 +101,9 @@ static void terminate_threads(int group_id)
 
 static void sig_handler(int sig)
 {
+	if (!threads)
+		return;
+
 	switch (sig) {
 	case SIGALRM:
 		update_io_ticks();
-- 
2.25.1