fix up watchdog init code

Signed-off-by: John Crispin <blogic@openwrt.org>

2 files changed, 6 insertions, 4 deletions

diff --git a/state.c b/state.c
index cf0c81d..71890a2 100644
--- a/state.c
+++ b/state.c
@@ -46,6 +46,9 @@ static void state_enter(void)
 		break;
 
 	case STATE_INIT:
+		// check if the wdt appeared during coldplug
+		if (!watchdog_fd())
+			watchdog_init();
 		LOG("- init -\n");
 		log_init();
 		procd_connect_ubus();
diff --git a/watchdog.c b/watchdog.c
index 2a516b4..e4b82f5 100644
--- a/watchdog.c
+++ b/watchdog.c
@@ -95,20 +95,19 @@ void watchdog_init(void)
 {
 	char *env = getenv("WDTFD");
 
+
 	wdt_timeout.cb = watchdog_timeout_cb;
 	if (env) {
-		LOG("- watchdog -\n");
 		DEBUG(1, "Watchdog handover: fd=%s\n", env);
 		wdt_fd = atoi(env);
-		fcntl(wdt_fd, F_SETFD, fcntl(wdt_fd, F_GETFD) | FD_CLOEXEC);
 		unsetenv("WDTFD");
 	} else {
 		wdt_fd = open("/dev/watchdog", O_WRONLY);
-		if (getpid() != 1)
-			fcntl(wdt_fd, F_SETFD, fcntl(wdt_fd, F_GETFD) | FD_CLOEXEC);
 	}
 	if (wdt_fd < 0)
 		return;
+	fcntl(wdt_fd, F_SETFD, fcntl(wdt_fd, F_GETFD) | FD_CLOEXEC);
+	LOG("- watchdog -\n");
 	watchdog_timeout(30);
 	watchdog_timeout_cb(&wdt_timeout);