[PATCH 3.13 084/103] hwmon: (ds1621) Update zbits after conversion rate change

From: Kamal Mostafa
Date: Tue Sep 30 2014 - 17:44:49 EST -stable review patch. If anyone has any objections, please let me know.


From: Robert Coulson <rob.coulson@xxxxxxxxx>

commit 39c627a084475e8a690a4a9e7601410ca173ddd2 upstream.

After the conversion rate is changed, the zbits are not updated,
but should be, since they are used later in the set_temp function.

Fixes: a50d9a4d9ad3 ("hwmon: (ds1621) Fix temperature rounding operations")
Reported-by: Murat Ilsever <murat.ilsever@xxxxxxxxx>
Signed-off-by: Robert Coulson <rob.coulson@xxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
drivers/hwmon/ds1621.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 872d767..b96d201 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -309,6 +309,7 @@ static ssize_t set_convrate(struct device *dev, struct device_attribute *da,
data->conf |= (resol << DS1621_REG_CONFIG_RESOL_SHIFT);
i2c_smbus_write_byte_data(client, DS1621_REG_CONF, data->conf);
data->update_interval = ds1721_convrates[resol];
+ data->zbits = 7 - resol;

return count;

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