linux-kernel - [PATCH] watchdog: ts72xx_wdt: disable watchdog at probe

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Message-Id: <1283079194-20156-1-git-send-email-mika.westerberg@iki.fi>
Date:	Sun, 29 Aug 2010 13:53:14 +0300
From:	Mika Westerberg <mika.westerberg@....fi>
To:	wim@...ana.be
Cc:	linux-kernel@...r.kernel.org, mika.westerberg@....fi
Subject: [PATCH] watchdog: ts72xx_wdt: disable watchdog at probe

Since it may be already enabled by bootloader or some other utility. This patch
makes sure that the watchdog is disabled before any userspace daemon opens the
device. It is also required by the watchdog API.

Signed-off-by: Mika Westerberg <mika.westerberg@....fi>
---
 drivers/watchdog/ts72xx_wdt.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index 458c499..18cdeb4 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -449,6 +449,9 @@ static __devinit int ts72xx_wdt_probe(struct platform_device *pdev)
 	wdt->pdev = pdev;
 	mutex_init(&wdt->lock);
 
+	/* make sure that the watchdog is disabled */
+	ts72xx_wdt_stop(wdt);
+
 	error = misc_register(&ts72xx_wdt_miscdev);
 	if (error) {
 		dev_err(&pdev->dev, "failed to register miscdev\n");
-- 
1.5.6.5

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