Fwd: [lm-sensors] [patch] watchdog: sch56xx-common: set correct bits in register()

Fwd: [lm-sensors] [patch] watchdog: sch56xx-common: set correct bits in register()

[Hans de Goede]

Hi,

Thanks for the patch! Since the rest of the watchdog related
sch56xx-common patches, which introduce this problem in the first
place, are going into 3.5 through the watchdog tree, this patch
should probably go in through that tree too -> forwarding this
to linux-watchdog.

Also:
Acked-by: Hans de Goede <hdegoede@redhat.com>

Regards,

Hans




-------- Original Message --------
Subject: [lm-sensors] [patch] watchdog: sch56xx-common: set correct bits in register()
Date: Thu, 24 May 2012 18:58:02 +0300
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Jean Delvare <khali@linux-fr.org>
CC: lm-sensors@lm-sensors.org, kernel-janitors@vger.kernel.org

WDOG_NO_WAY_OUT (3) and WDOG_ACTIVE (0) are the bit numbers, not a mask.
So "data->wddev.status |= WDOG_ACTIVE;" was intended to set bit zero but
it is a no-op.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c
index 839087c..4380f5d 100644
--- a/drivers/hwmon/sch56xx-common.c
+++ b/drivers/hwmon/sch56xx-common.c
@@ -464,9 +464,9 @@ struct sch56xx_watchdog_data *sch56xx_watchdog_register(struct device *parent,
  	data->wddev.min_timeout = 1;
  	data->wddev.max_timeout = 255 * 60;
  	if (nowayout)
-		data->wddev.status |= WDOG_NO_WAY_OUT;
+		set_bit(WDOG_NO_WAY_OUT, &data->wddev.status);
  	if (output_enable & SCH56XX_WDOG_OUTPUT_ENABLE)
-		data->wddev.status |= WDOG_ACTIVE;
+		set_bit(WDOG_ACTIVE, &data->wddev.status);

  	/* Since the watchdog uses a downcounter there is no register to read
  	   the BIOS set timeout from (if any was set at all) ->

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