linux-kernel - [PATCH 3.4 07/19] watchdog: sp805: Set watchdog_device->timeout from ->set

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Date:	Fri,  4 Jul 2014 15:15:17 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Arun Ramamurthy <arun.ramamurthy@...adcom.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Wim Van Sebroeck <wim@...ana.be>
Subject: [PATCH 3.4 07/19] watchdog: sp805: Set watchdog_device->timeout from ->set_timeout()

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Viresh Kumar <viresh.kumar@...aro.org>

commit 938626d96a3ffb9eb54552bb0d3a4f2b30ffdeb0 upstream.

Implementation of ->set_timeout() is supposed to set 'timeout' field of 'struct
watchdog_device' passed to it. sp805 was rather setting this in a local
variable. Fix it.

Reported-by: Arun Ramamurthy <arun.ramamurthy@...adcom.com>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Reviewed-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/watchdog/sp805_wdt.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -62,7 +62,6 @@
  * @adev: amba device structure of wdt
  * @status: current status of wdt
  * @load_val: load value to be set for current timeout
- * @timeout: current programmed timeout
  */
 struct sp805_wdt {
 	spinlock_t			lock;
@@ -73,7 +72,6 @@ struct sp805_wdt {
 	#define WDT_BUSY		0
 	#define WDT_CAN_BE_CLOSED	1
 	unsigned int			load_val;
-	unsigned int			timeout;
 };
 
 /* local variables */
@@ -101,7 +99,7 @@ static void wdt_setload(unsigned int tim
 	spin_lock(&wdt->lock);
 	wdt->load_val = load;
 	/* roundup timeout to closest positive integer value */
-	wdt->timeout = div_u64((load + 1) * 2 + (rate / 2), rate);
+	wdd->timeout = div_u64((load + 1) * 2 + (rate / 2), rate);
 	spin_unlock(&wdt->lock);
 }
 


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