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watchdog: fix fd validity check

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This commit is contained in:
Lennart Poettering 2021-10-18 11:26:58 +02:00
parent ef52fa5bd1
commit d9752ca196
1 changed files with 1 additions and 1 deletions
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src/shared/watchdog.c
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@ -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;