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    Subject[PATCH 5.17 224/298] watchdog: wdat_wdt: Stop watchdog when rebooting the system
    Date
    From: Liu Xinpeng <liuxp11@chinatelecom.cn>

    [ Upstream commit 27fdf84510a1374748904db43f6755f912736d92 ]

    Executing reboot command several times on the machine "Dell
    PowerEdge R740", UEFI security detection stopped machine
    with the following prompt:

    UEFI0082: The system was reset due to a timeout from the watchdog
    timer. Check the System Event Log (SEL) or crash dumps from
    Operating Sysstem to identify the source that triggered the
    watchdog timer reset. Update the firmware or driver for the
    identified device.

    iDRAC has warning event: "The watchdog timer reset the system".

    This patch fixes this issue by adding the reboot notifier.

    Signed-off-by: Liu Xinpeng <liuxp11@chinatelecom.cn>
    Reviewed-by: Guenter Roeck <linux@roeck-us.net>
    Link: https://lore.kernel.org/r/1650984810-6247-3-git-send-email-liuxp11@chinatelecom.cn
    Signed-off-by: Guenter Roeck <linux@roeck-us.net>
    Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/watchdog/wdat_wdt.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
    index 195c8c004b69..4fac8148a8e6 100644
    --- a/drivers/watchdog/wdat_wdt.c
    +++ b/drivers/watchdog/wdat_wdt.c
    @@ -462,6 +462,7 @@ static int wdat_wdt_probe(struct platform_device *pdev)
    return ret;

    watchdog_set_nowayout(&wdat->wdd, nowayout);
    + watchdog_stop_on_reboot(&wdat->wdd);
    return devm_watchdog_register_device(dev, &wdat->wdd);
    }

    --
    2.35.1


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