From: Jens Axboe <axboe@fb.com>
Date: Mon, 7 Dec 2015 17:42:24 +0000 (-0700)
Subject: init: have set_debug() check for NULL optarg
X-Git-Tag: fio-2.2.13~43
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=2706fa00e78f61110bc6a43413ee3451a4d8a5b5;p=fio.git

init: have set_debug() check for NULL optarg

Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/init.c b/init.c
index 353cc2b1..0100da21 100644
--- a/init.c
+++ b/init.c
@@ -1899,6 +1899,9 @@ static int set_debug(const char *string)
 	char *opt;
 	int i;
 
+	if (!string)
+		return 0;
+
 	if (!strcmp(string, "?") || !strcmp(string, "help")) {
 		log_info("fio: dumping debug options:");
 		for (i = 0; debug_levels[i].name; i++) {