linux-kernel - [char-misc-next 06/17] mei: bus: add kdoc for device attribute functions

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Date:	Sat, 13 Jun 2015 22:11:38 +0300
From:	Tomas Winkler <tomas.winkler@...el.com>
To:	gregkh@...uxfoundation.org
Cc:	arnd@...db.de, linux-kernel@...r.kernel.org,
	Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc-next 06/17] mei: bus: add kdoc for device attribute functions

1. Rename uevent handler to mei_cl_device_uevent
2. Add kdoc for uevent and mod alias functions

Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 drivers/misc/mei/bus.c | 43 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 39 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index b14662787d7e..201019c5f766 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -462,8 +462,17 @@ static int mei_cl_device_remove(struct device *dev)
 	return cldrv->remove(cldev);
 }
 
+/**
+ * name_show - client device name sysfs entry
+ *
+ * @dev: device
+ * @a: device attribute
+ * @buf: a buffer to fill
+ *
+ * Return: bytes to read or < 0 on error
+ */
 static ssize_t name_show(struct device *dev, struct device_attribute *a,
-			     char *buf)
+			 char *buf)
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	size_t len;
@@ -474,8 +483,17 @@ static ssize_t name_show(struct device *dev, struct device_attribute *a,
 }
 static DEVICE_ATTR_RO(name);
 
+/**
+ * uuid_show - client uuid sysfs entry
+ *
+ * @dev: device
+ * @a: device attribute
+ * @buf: a buffer to fill
+ *
+ * Return: bytes to read or < 0 on error
+ */
 static ssize_t uuid_show(struct device *dev, struct device_attribute *a,
-			     char *buf)
+			 char *buf)
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
@@ -487,6 +505,15 @@ static ssize_t uuid_show(struct device *dev, struct device_attribute *a,
 }
 static DEVICE_ATTR_RO(uuid);
 
+/**
+ * modalias_show - modalias sysfs entry
+ *
+ * @dev: device
+ * @a: device attribute
+ * @buf: a buffer to fill
+ *
+ * Return: bytes to read or < 0 on error
+ */
 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
 			     char *buf)
 {
@@ -509,7 +536,15 @@ static struct attribute *mei_cl_dev_attrs[] = {
 };
 ATTRIBUTE_GROUPS(mei_cl_dev);
 
-static int mei_cl_uevent(struct device *dev, struct kobj_uevent_env *env)
+/**
+ * mei_cl_device_uevent - me client bus uevent handler
+ *
+ * @dev: device
+ * @env: uevent kobject
+ *
+ * Return: 0 on success -ENOMEM on when add_uevent_var fails
+ */
+static int mei_cl_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
@@ -533,7 +568,7 @@ static struct bus_type mei_cl_bus_type = {
 	.match		= mei_cl_device_match,
 	.probe		= mei_cl_device_probe,
 	.remove		= mei_cl_device_remove,
-	.uevent		= mei_cl_uevent,
+	.uevent		= mei_cl_device_uevent,
 };
 
 static void mei_cl_dev_release(struct device *dev)
-- 
2.4.2

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