From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 18 Oct 2021 09:26:58 +0000 (+0200)
Subject: watchdog: fix fd validity check
X-Git-Tag: v250-rc1~483^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d9752ca196853fa17d9b58e496f8c3668a9bc099;p=thirdparty%2Fsystemd.git

watchdog: fix fd validity check
---

diff --git a/src/shared/watchdog.c b/src/shared/watchdog.c
index 4317d90b24d..3f4c72826db 100644
--- a/src/shared/watchdog.c
+++ b/src/shared/watchdog.c
@@ -42,7 +42,7 @@ static int watchdog_set_enable(bool enable) {
 static int watchdog_get_timeout(void) {
         int sec = 0;
 
-        assert(watchdog_fd > 0);
+        assert(watchdog_fd >= 0);
 
         if (ioctl(watchdog_fd, WDIOC_GETTIMEOUT, &sec) < 0)
                 return -errno;