diff options
Diffstat (limited to 'drivers/hwmon/lm77.c')
| -rw-r--r-- | drivers/hwmon/lm77.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index b98f4495299..15f30fdc75c 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c @@ -31,7 +31,8 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/i2c-sensor.h> - +#include <linux/hwmon.h> +#include <linux/err.h> /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, I2C_CLIENT_END }; @@ -51,6 +52,7 @@ SENSORS_INSMOD_1(lm77); /* Each client has this additional data */ struct lm77_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore update_lock; char valid; unsigned long last_updated; /* In jiffies */ @@ -317,6 +319,12 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind) lm77_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, &dev_attr_temp1_input); device_create_file(&new_client->dev, &dev_attr_temp1_crit); device_create_file(&new_client->dev, &dev_attr_temp1_min); @@ -327,6 +335,8 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind) device_create_file(&new_client->dev, &dev_attr_alarms); return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -335,8 +345,10 @@ exit: static int lm77_detach_client(struct i2c_client *client) { + struct lm77_data *data = i2c_get_clientdata(client); + hwmon_device_unregister(data->class_dev); i2c_detach_client(client); - kfree(i2c_get_clientdata(client)); + kfree(data); return 0; } |