diff options
Diffstat (limited to 'drivers/hwmon/adm1021.c')
| -rw-r--r-- | drivers/hwmon/adm1021.c | 97 |
1 files changed, 55 insertions, 42 deletions
diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c index 0158cc35cb2..4394e7e99c4 100644 --- a/drivers/hwmon/adm1021.c +++ b/drivers/hwmon/adm1021.c @@ -1,23 +1,23 @@ /* - adm1021.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and - Philip Edelbrock <phil@netroedge.com> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ + * adm1021.c - Part of lm_sensors, Linux kernel modules for hardware + * monitoring + * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and + * Philip Edelbrock <phil@netroedge.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ #include <linux/module.h> #include <linux/init.h> @@ -70,10 +70,12 @@ enum chips { /* Initial values */ -/* Note: Even though I left the low and high limits named os and hyst, -they don't quite work like a thermostat the way the LM75 does. I.e., -a lower temp than THYST actually triggers an alarm instead of -clearing it. Weird, ey? --Phil */ +/* + * Note: Even though I left the low and high limits named os and hyst, + * they don't quite work like a thermostat the way the LM75 does. I.e., + * a lower temp than THYST actually triggers an alarm instead of + * clearing it. Weird, ey? --Phil + */ /* Each client has this additional data */ struct adm1021_data { @@ -182,7 +184,13 @@ static ssize_t set_temp_max(struct device *dev, int index = to_sensor_dev_attr(devattr)->index; struct i2c_client *client = to_i2c_client(dev); struct adm1021_data *data = i2c_get_clientdata(client); - long temp = simple_strtol(buf, NULL, 10) / 1000; + long temp; + int err; + + err = kstrtol(buf, 10, &temp); + if (err) + return err; + temp /= 1000; mutex_lock(&data->update_lock); data->temp_max[index] = SENSORS_LIMIT(temp, -128, 127); @@ -201,7 +209,13 @@ static ssize_t set_temp_min(struct device *dev, int index = to_sensor_dev_attr(devattr)->index; struct i2c_client *client = to_i2c_client(dev); struct adm1021_data *data = i2c_get_clientdata(client); - long temp = simple_strtol(buf, NULL, 10) / 1000; + long temp; + int err; + + err = kstrtol(buf, 10, &temp); + if (err) + return err; + temp /= 1000; mutex_lock(&data->update_lock); data->temp_min[index] = SENSORS_LIMIT(temp, -128, 127); @@ -226,7 +240,14 @@ static ssize_t set_low_power(struct device *dev, { struct i2c_client *client = to_i2c_client(dev); struct adm1021_data *data = i2c_get_clientdata(client); - int low_power = simple_strtol(buf, NULL, 10) != 0; + char low_power; + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err) + return err; + low_power = val != 0; mutex_lock(&data->update_lock); if (low_power != data->low_power) { @@ -361,7 +382,8 @@ static int adm1021_probe(struct i2c_client *client, adm1021_init_client(client); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&client->dev.kobj, &adm1021_group))) + err = sysfs_create_group(&client->dev.kobj, &adm1021_group); + if (err) goto error1; data->hwmon_dev = hwmon_device_register(&client->dev); @@ -427,8 +449,10 @@ static struct adm1021_data *adm1021_update_device(struct device *dev) data->alarms = i2c_smbus_read_byte_data(client, ADM1021_REG_STATUS) & 0x7c; if (data->type == adm1023) { - /* The ADM1023 provides 3 extra bits of precision for - * the remote sensor in extra registers. */ + /* + * The ADM1023 provides 3 extra bits of precision for + * the remote sensor in extra registers. + */ data->temp[1] += 125 * (i2c_smbus_read_byte_data( client, ADM1023_REG_REM_TEMP_PREC) >> 5); data->temp_max[1] += 125 * (i2c_smbus_read_byte_data( @@ -451,23 +475,12 @@ static struct adm1021_data *adm1021_update_device(struct device *dev) return data; } -static int __init sensors_adm1021_init(void) -{ - return i2c_add_driver(&adm1021_driver); -} - -static void __exit sensors_adm1021_exit(void) -{ - i2c_del_driver(&adm1021_driver); -} +module_i2c_driver(adm1021_driver); -MODULE_AUTHOR ("Frodo Looijaard <frodol@dds.nl> and " +MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and " "Philip Edelbrock <phil@netroedge.com>"); MODULE_DESCRIPTION("adm1021 driver"); MODULE_LICENSE("GPL"); module_param(read_only, bool, 0); MODULE_PARM_DESC(read_only, "Don't set any values, read only mode"); - -module_init(sensors_adm1021_init) -module_exit(sensors_adm1021_exit) |