linux-kernel - [watchdog] watchdog: mei_wdt: request stop on unregister

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Message-Id: <20210107195730.1660449-1-tomas.winkler@intel.com>
Date:   Thu,  7 Jan 2021 21:57:30 +0200
From:   Tomas Winkler <tomas.winkler@...el.com>
To:     Wim Van Sebroeck <wim@...ana.be>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alexander Usyskin <alexander.usyskin@...el.com>,
        stable@...r.kernel.org, Tomas Winkler <tomas.winkler@...el.com>
Subject: [watchdog] watchdog: mei_wdt: request stop on unregister

From: Alexander Usyskin <alexander.usyskin@...el.com>

Send the stop command to the firmware on watchdog unregister
to eleminate false event on suspend.

Cc: <stable@...r.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@...el.com>
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 drivers/watchdog/mei_wdt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/watchdog/mei_wdt.c b/drivers/watchdog/mei_wdt.c
index 5391bf3e6b11..c5967d8b4256 100644
--- a/drivers/watchdog/mei_wdt.c
+++ b/drivers/watchdog/mei_wdt.c
@@ -382,6 +382,7 @@ static int mei_wdt_register(struct mei_wdt *wdt)
 
 	watchdog_set_drvdata(&wdt->wdd, wdt);
 	watchdog_stop_on_reboot(&wdt->wdd);
+	watchdog_stop_on_unregister(&wdt->wdd);
 
 	ret = watchdog_register_device(&wdt->wdd);
 	if (ret)
-- 
2.26.2