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path: root/drivers/hwmon/lm63.c
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Diffstat (limited to 'drivers/hwmon/lm63.c')
-rw-r--r--drivers/hwmon/lm63.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 7c6f9ea..cba0a40 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -44,6 +44,8 @@
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
/*
* Addresses to scan
@@ -152,6 +154,7 @@ static struct i2c_driver lm63_driver = {
struct lm63_data {
struct i2c_client client;
+ struct class_device *class_dev;
struct semaphore update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
@@ -437,6 +440,12 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
lm63_init_client(new_client);
/* Register sysfs hooks */
+ data->class_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto exit_detach;
+ }
+
if (data->config & 0x04) { /* tachometer enabled */
device_create_file(&new_client->dev,
&sensor_dev_attr_fan1_input.dev_attr);
@@ -462,6 +471,8 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
+exit_detach:
+ i2c_detach_client(new_client);
exit_free:
kfree(data);
exit:
@@ -505,15 +516,18 @@ static void lm63_init_client(struct i2c_client *client)
static int lm63_detach_client(struct i2c_client *client)
{
+ struct lm63_data *data = i2c_get_clientdata(client);
int err;
+ hwmon_device_unregister(data->class_dev);
+
if ((err = i2c_detach_client(client))) {
dev_err(&client->dev, "Client deregistration failed, "
"client not detached\n");
return err;
}
- kfree(i2c_get_clientdata(client));
+ kfree(data);
return 0;
}
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