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path: root/drivers/hwmon/asb100.c
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Diffstat (limited to 'drivers/hwmon/asb100.c')
-rw-r--r--drivers/hwmon/asb100.c31
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c
index 70d996d6fe0a..3ab7a2ddafba 100644
--- a/drivers/hwmon/asb100.c
+++ b/drivers/hwmon/asb100.c
@@ -41,6 +41,8 @@
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
#include <linux/i2c-vid.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/jiffies.h>
#include "lm75.h"
@@ -183,6 +185,7 @@ static u8 DIV_TO_REG(long val)
dynamically allocated, at the same time the client itself is allocated. */
struct asb100_data {
struct i2c_client client;
+ struct class_device *class_dev;
struct semaphore lock;
enum chips type;
@@ -821,6 +824,12 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2));
/* 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 ERROR3;
+ }
+
device_create_file_in(new_client, 0);
device_create_file_in(new_client, 1);
device_create_file_in(new_client, 2);
@@ -847,6 +856,11 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
+ERROR3:
+ i2c_detach_client(data->lm75[1]);
+ i2c_detach_client(data->lm75[0]);
+ kfree(data->lm75[1]);
+ kfree(data->lm75[0]);
ERROR2:
i2c_detach_client(new_client);
ERROR1:
@@ -857,21 +871,26 @@ ERROR0:
static int asb100_detach_client(struct i2c_client *client)
{
+ struct asb100_data *data = i2c_get_clientdata(client);
int err;
+ /* main client */
+ if (data)
+ 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;
}
- if (i2c_get_clientdata(client)==NULL) {
- /* subclients */
+ /* main client */
+ if (data)
+ kfree(data);
+
+ /* subclient */
+ else
kfree(client);
- } else {
- /* main client */
- kfree(i2c_get_clientdata(client));
- }
return 0;
}