hwmon: (adm1026) Allow 1 as a valid divider value

Allow 1 as a valid div value as specified in the ADM1026 datasheet.
Signed-off-by: NGabriele Gorla <gorlik@penguintown.net>
Cc: stable@kernel.org
Signed-off-by: NJean Delvare <khali@linux-fr.org>

drivers/hwmon/adm1026.c

@@ -920,9 +920,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 
 	val = simple_strtol(buf, NULL, 10);
 	new_div = DIV_TO_REG(val);
-	if (new_div == 0) {
-		return -EINVAL;
-	}
+
 	mutex_lock(&data->update_lock);
 	orig_div = data->fan_div[nr];
 	data->fan_div[nr] = DIV_FROM_REG(new_div);