diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/w83792d.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c index fa43b6fd121..05f9b92ad3e 100644 --- a/drivers/hwmon/w83792d.c +++ b/drivers/hwmon/w83792d.c @@ -42,7 +42,9 @@ #include <linux/i2c.h> #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> +#include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> +#include <linux/err.h> /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; @@ -267,6 +269,7 @@ DIV_TO_REG(long val) struct w83792d_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore lock; enum chips type; @@ -1289,6 +1292,11 @@ w83792d_detect(struct i2c_adapter *adapter, int address, int kind) } /* 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); @@ -1361,6 +1369,15 @@ w83792d_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +ERROR3: + if (data->lm75[0] != NULL) { + i2c_detach_client(data->lm75[0]); + kfree(data->lm75[0]); + } + if (data->lm75[1] != NULL) { + i2c_detach_client(data->lm75[1]); + kfree(data->lm75[1]); + } ERROR2: i2c_detach_client(new_client); ERROR1: @@ -1372,21 +1389,25 @@ ERROR0: static int w83792d_detach_client(struct i2c_client *client) { + struct w83792d_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; } |