[PATCH] watchdog: Respect handle_boot_enabled when setting last last_hw_keepalive

From: Jan Kiszka
Date: Fri Jul 30 2021 - 15:39:23 EST


From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>

We must not pet a running watchdog when handle_boot_enabled is off
because this requests to only start doing that via userspace, not during
probing.

Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
---
drivers/watchdog/watchdog_dev.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c
index 3bab32485273..3c93d00bb284 100644
--- a/drivers/watchdog/watchdog_dev.c
+++ b/drivers/watchdog/watchdog_dev.c
@@ -1172,7 +1172,10 @@ int watchdog_set_last_hw_keepalive(struct watchdog_device *wdd,

wd_data->last_hw_keepalive = ktime_sub(now, ms_to_ktime(last_ping_ms));

- return __watchdog_ping(wdd);
+ if (handle_boot_enabled)
+ return __watchdog_ping(wdd);
+
+ return 0;
}
EXPORT_SYMBOL_GPL(watchdog_set_last_hw_keepalive);

--
2.31.1