diff options
Diffstat (limited to 'drivers/hwmon/lm90.c')
| -rw-r--r-- | drivers/hwmon/lm90.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index a67dcadf7cb..c1e8d0e965f 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -77,6 +77,8 @@ #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 @@ -200,6 +202,7 @@ static struct i2c_driver lm90_driver = { struct lm90_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 */ @@ -500,6 +503,12 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) lm90_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; + } + device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr); device_create_file(&new_client->dev, @@ -524,6 +533,8 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -547,15 +558,18 @@ static void lm90_init_client(struct i2c_client *client) static int lm90_detach_client(struct i2c_client *client) { + struct lm90_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; } |