[PATCH] boot: fix systemd watchdog command line argument

[Sascha Hauer]

The kernel command line option to specify the watchdog to use is
"systemd.watchdog_device" as specified in [1], not
"systemd.watchdog-device"

[1] https://www.freedesktop.org/software/systemd/man/latest/kernel-command-line.html#systemd.watchdog_sec=

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 common/oftree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/oftree.c b/common/oftree.c
index 4afe955719..2ebde791c7 100644
--- a/common/oftree.c
+++ b/common/oftree.c
@@ -172,7 +172,7 @@ static void watchdog_build_bootargs(struct watchdog *watchdog, struct device_nod
 	if (alias_id < 0)
 		return;
 
-	buf = basprintf("systemd.watchdog-device=/dev/watchdog%d", alias_id);
+	buf = basprintf("systemd.watchdog_device=/dev/watchdog%d", alias_id);
 	if (!buf)
 		return;
 
-- 
2.39.5