misc: ds1682: Show device registers as unsigned

This patch leverages the fact that all DS1682 registers are unsigned to
merge two return paths into one. It also introduces val_le as used in
ds1682_store() to merge two endianness conversions into one.

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/ds1682.c

@@ -59,25 +59,25 @@ static ssize_t ds1682_show(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
 	struct i2c_client *client = to_i2c_client(dev);
-	__le32 val = 0;
+	unsigned long long val;
+	__le32 val_le = 0;
 	int rc;
 
 	dev_dbg(dev, "ds1682_show() called on %s\n", attr->attr.name);
 
 	/* Read the register */
 	rc = i2c_smbus_read_i2c_block_data(client, sattr->index, sattr->nr,
-					   (u8 *) & val);
+					   (u8 *)&val_le);
 	if (rc < 0)
 		return -EIO;
 
-	/* Special case: the 32 bit regs are time values with 1/4s
-	 * resolution, scale them up to milliseconds */
-	if (sattr->nr == 4)
-		return sprintf(buf, "%llu\n",
-			((unsigned long long)le32_to_cpu(val)) * 250);
+	val = le32_to_cpu(val_le);
 
-	/* Format the output string and return # of bytes */
-	return sprintf(buf, "%li\n", (long)le32_to_cpu(val));
+	/* Format the output string and return # of bytes
+	 * Special case: the 32 bit regs are time values with 1/4s
+	 * resolution, scale them up to milliseconds
+	 */
+	return sprintf(buf, "%llu\n", (sattr->nr == 4) ? (val * 250) : val);
 }
 
 static ssize_t ds1682_store(struct device *dev, struct device_attribute *attr,