linux-kernel - [ 025/108] hwmon: (ads7871) Add name sysfs attribute

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Message-Id: <20121007225838.175286411@decadent.org.uk>
Date:	Sun, 07 Oct 2012 23:58:59 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Guenter Roeck <linux@...ck-us.net>,
	Paul Thomas <pthomas8589@...il.com>,
	Jean Delvare <khali@...ux-fr.org>
Subject: [ 025/108] hwmon: (ads7871) Add name sysfs attribute

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Guenter Roeck <linux@...ck-us.net>

commit 4e21f4eaa49f78d3e977e316514c941053871c76 upstream.

The 'name' sysfs attribute is mandatory for hwmon devices, but was missing
in this driver.

Cc: Paul Thomas <pthomas8589@...il.com>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Acked-by: Jean Delvare <khali@...ux-fr.org>
Acked-by: Paul Thomas <pthomas8589@...il.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/hwmon/ads7871.c |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/hwmon/ads7871.c b/drivers/hwmon/ads7871.c
index e65c6e4..7bf4ce3 100644
--- a/drivers/hwmon/ads7871.c
+++ b/drivers/hwmon/ads7871.c
@@ -139,6 +139,12 @@ static ssize_t show_voltage(struct device *dev,
 	}
 }
 
+static ssize_t ads7871_show_name(struct device *dev,
+				 struct device_attribute *devattr, char *buf)
+{
+	return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
+}
+
 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_voltage, NULL, 0);
 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_voltage, NULL, 1);
 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_voltage, NULL, 2);
@@ -148,6 +154,8 @@ static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_voltage, NULL, 5);
 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_voltage, NULL, 6);
 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_voltage, NULL, 7);
 
+static DEVICE_ATTR(name, S_IRUGO, ads7871_show_name, NULL);
+
 static struct attribute *ads7871_attributes[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
@@ -157,6 +165,7 @@ static struct attribute *ads7871_attributes[] = {
 	&sensor_dev_attr_in5_input.dev_attr.attr,
 	&sensor_dev_attr_in6_input.dev_attr.attr,
 	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&dev_attr_name.attr,
 	NULL
 };
 


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