Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c
index 8ea3593..7802bbf 100644
--- a/drivers/hwmon/ad7314.c
+++ b/drivers/hwmon/ad7314.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * AD7314 digital temperature sensor driver for AD7314, ADT7301 and ADT7302
  *
  * Copyright 2010 Analog Devices Inc.
  *
- * Licensed under the GPL-2 or later.
- *
  * Conversion to hwmon from IIO done by Jonathan Cameron <jic23@cam.ac.uk>
  */
 #include <linux/device.h>
@@ -53,9 +52,9 @@
 	return be16_to_cpu(chip->rx);
 }
 
-static ssize_t ad7314_show_temperature(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+static ssize_t ad7314_temperature_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
 {
 	struct ad7314_data *chip = dev_get_drvdata(dev);
 	s16 data;
@@ -87,8 +86,7 @@
 	}
 }
 
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
-			  ad7314_show_temperature, NULL, 0);
+static SENSOR_DEVICE_ATTR_RO(temp1_input, ad7314_temperature, 0);
 
 static struct attribute *ad7314_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,