diff options
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 122 |
1 files changed, 82 insertions, 40 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 23824183e02..7a58b079d73 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -4,6 +4,7 @@ Copyright (C) 2005 Jean Delvare <khali@linux-fr.org> Copyright (C) 2006 Yuan Mu <Ymu@Winbond.com.tw>, Rudolf Marek <r.marek@sh.cvut.cz> + David Hubbard <david.c.hubbard@gmail.com> Shamelessly ripped from the w83627hf driver Copyright (C) 2003 Mark Studebaker @@ -621,14 +622,6 @@ static struct sensor_device_attribute sda_in_max[] = { SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9), }; -static void device_create_file_in(struct device *dev, int i) -{ - device_create_file(dev, &sda_in_input[i].dev_attr); - device_create_file(dev, &sda_in_alarm[i].dev_attr); - device_create_file(dev, &sda_in_min[i].dev_attr); - device_create_file(dev, &sda_in_max[i].dev_attr); -} - #define show_fan_reg(reg) \ static ssize_t \ show_##reg(struct device *dev, struct device_attribute *attr, \ @@ -756,14 +749,6 @@ static struct sensor_device_attribute sda_fan_div[] = { SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4), }; -static void device_create_file_fan(struct device *dev, int i) -{ - device_create_file(dev, &sda_fan_input[i].dev_attr); - device_create_file(dev, &sda_fan_alarm[i].dev_attr); - device_create_file(dev, &sda_fan_div[i].dev_attr); - device_create_file(dev, &sda_fan_min[i].dev_attr); -} - #define show_temp1_reg(reg) \ static ssize_t \ show_##reg(struct device *dev, struct device_attribute *attr, \ @@ -1036,15 +1021,6 @@ static struct sensor_device_attribute sda_tolerance[] = { store_tolerance, 3), }; -static void device_create_file_pwm(struct device *dev, int i) -{ - device_create_file(dev, &sda_pwm[i].dev_attr); - device_create_file(dev, &sda_pwm_mode[i].dev_attr); - device_create_file(dev, &sda_pwm_enable[i].dev_attr); - device_create_file(dev, &sda_target_temp[i].dev_attr); - device_create_file(dev, &sda_tolerance[i].dev_attr); -} - /* Smart Fan registers */ #define fan_functions(reg, REG) \ @@ -1131,6 +1107,39 @@ static struct sensor_device_attribute sda_sf3_arrays[] = { * Driver and client management */ +static void w83627ehf_device_remove_files(struct device *dev) +{ + /* some entries in the following arrays may not have been used in + * device_create_file(), but device_remove_file() will ignore them */ + int i; + + for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) + device_remove_file(dev, &sda_sf3_arrays[i].dev_attr); + for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) + device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr); + for (i = 0; i < 10; i++) { + device_remove_file(dev, &sda_in_input[i].dev_attr); + device_remove_file(dev, &sda_in_alarm[i].dev_attr); + device_remove_file(dev, &sda_in_min[i].dev_attr); + device_remove_file(dev, &sda_in_max[i].dev_attr); + } + for (i = 0; i < 5; i++) { + device_remove_file(dev, &sda_fan_input[i].dev_attr); + device_remove_file(dev, &sda_fan_alarm[i].dev_attr); + device_remove_file(dev, &sda_fan_div[i].dev_attr); + device_remove_file(dev, &sda_fan_min[i].dev_attr); + } + for (i = 0; i < 4; i++) { + device_remove_file(dev, &sda_pwm[i].dev_attr); + device_remove_file(dev, &sda_pwm_mode[i].dev_attr); + device_remove_file(dev, &sda_pwm_enable[i].dev_attr); + device_remove_file(dev, &sda_target_temp[i].dev_attr); + device_remove_file(dev, &sda_tolerance[i].dev_attr); + } + for (i = 0; i < ARRAY_SIZE(sda_temp); i++) + device_remove_file(dev, &sda_temp[i].dev_attr); +} + static struct i2c_driver w83627ehf_driver; static void w83627ehf_init_client(struct i2c_client *client) @@ -1217,37 +1226,69 @@ static int w83627ehf_detect(struct i2c_adapter *adapter) data->has_fan |= (1 << 4); /* Register sysfs hooks */ - data->class_dev = hwmon_device_register(dev); - if (IS_ERR(data->class_dev)) { - err = PTR_ERR(data->class_dev); - goto exit_detach; - } - for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) - device_create_file(dev, &sda_sf3_arrays[i].dev_attr); + if ((err = device_create_file(dev, + &sda_sf3_arrays[i].dev_attr))) + goto exit_remove; /* if fan4 is enabled create the sf3 files for it */ if (data->has_fan & (1 << 3)) - for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) - device_create_file(dev, &sda_sf3_arrays_fan4[i].dev_attr); + for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) { + if ((err = device_create_file(dev, + &sda_sf3_arrays_fan4[i].dev_attr))) + goto exit_remove; + } for (i = 0; i < 10; i++) - device_create_file_in(dev, i); + if ((err = device_create_file(dev, &sda_in_input[i].dev_attr)) + || (err = device_create_file(dev, + &sda_in_alarm[i].dev_attr)) + || (err = device_create_file(dev, + &sda_in_min[i].dev_attr)) + || (err = device_create_file(dev, + &sda_in_max[i].dev_attr))) + goto exit_remove; for (i = 0; i < 5; i++) { if (data->has_fan & (1 << i)) { - device_create_file_fan(dev, i); - if (i != 4) /* we have only 4 pwm */ - device_create_file_pwm(dev, i); + if ((err = device_create_file(dev, + &sda_fan_input[i].dev_attr)) + || (err = device_create_file(dev, + &sda_fan_alarm[i].dev_attr)) + || (err = device_create_file(dev, + &sda_fan_div[i].dev_attr)) + || (err = device_create_file(dev, + &sda_fan_min[i].dev_attr))) + goto exit_remove; + if (i < 4 && /* w83627ehf only has 4 pwm */ + ((err = device_create_file(dev, + &sda_pwm[i].dev_attr)) + || (err = device_create_file(dev, + &sda_pwm_mode[i].dev_attr)) + || (err = device_create_file(dev, + &sda_pwm_enable[i].dev_attr)) + || (err = device_create_file(dev, + &sda_target_temp[i].dev_attr)) + || (err = device_create_file(dev, + &sda_tolerance[i].dev_attr)))) + goto exit_remove; } } for (i = 0; i < ARRAY_SIZE(sda_temp); i++) - device_create_file(dev, &sda_temp[i].dev_attr); + if ((err = device_create_file(dev, &sda_temp[i].dev_attr))) + goto exit_remove; + + data->class_dev = hwmon_device_register(dev); + if (IS_ERR(data->class_dev)) { + err = PTR_ERR(data->class_dev); + goto exit_remove; + } return 0; -exit_detach: +exit_remove: + w83627ehf_device_remove_files(dev); i2c_detach_client(client); exit_free: kfree(data); @@ -1263,6 +1304,7 @@ static int w83627ehf_detach_client(struct i2c_client *client) int err; hwmon_device_unregister(data->class_dev); + w83627ehf_device_remove_files(&client->dev); if ((err = i2c_detach_client(client))) return err; |