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w83781d: Fix unchecked return status
w83781d: Fix unchecked return status Add 2 attr-file groups (for base and model-specific attrs respectively), create the base group with single call to sysfs_create_group, check the return code on individual calls to device_create_file for each of the model-specific attr-files. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jim Cromie
Greg Kroah-Hartman
parent
cbeeb5b7c9
commit
311ce2efb1
@ -41,6 +41,7 @@
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#include <linux/i2c-isa.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-vid.h>
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#include <linux/sysfs.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <asm/io.h>
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@ -360,13 +361,6 @@ sysfs_in_offsets(6);
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sysfs_in_offsets(7);
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sysfs_in_offsets(8);
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#define device_create_file_in(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_in##offset##_input); \
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device_create_file(&client->dev, &dev_attr_in##offset##_min); \
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device_create_file(&client->dev, &dev_attr_in##offset##_max); \
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} while (0)
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#define show_fan_reg(reg) \
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static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
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{ \
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@ -421,12 +415,6 @@ sysfs_fan_min_offset(2);
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sysfs_fan_offset(3);
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sysfs_fan_min_offset(3);
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#define device_create_file_fan(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
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device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
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} while (0)
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#define show_temp_reg(reg) \
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static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
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{ \
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@ -497,13 +485,6 @@ sysfs_temp_offsets(1);
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sysfs_temp_offsets(2);
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sysfs_temp_offsets(3);
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#define device_create_file_temp(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
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device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
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device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
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} while (0)
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static ssize_t
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show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
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{
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@ -511,10 +492,8 @@ show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
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return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
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}
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static
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DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
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#define device_create_file_vid(client) \
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device_create_file(&client->dev, &dev_attr_cpu0_vid);
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static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
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static ssize_t
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show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
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{
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@ -535,10 +514,8 @@ store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf
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return count;
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}
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static
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DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
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#define device_create_file_vrm(client) \
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device_create_file(&client->dev, &dev_attr_vrm);
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static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
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static ssize_t
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show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
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{
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@ -546,10 +523,8 @@ show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
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return sprintf(buf, "%u\n", data->alarms);
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}
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static
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DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
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#define device_create_file_alarms(client) \
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device_create_file(&client->dev, &dev_attr_alarms);
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static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
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static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct w83781d_data *data = w83781d_update_device(dev);
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@ -615,12 +590,6 @@ static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, show_regs_beep_##reg, store_re
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sysfs_beep(ENABLE, enable);
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sysfs_beep(MASK, mask);
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#define device_create_file_beep(client) \
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do { \
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device_create_file(&client->dev, &dev_attr_beep_enable); \
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device_create_file(&client->dev, &dev_attr_beep_mask); \
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} while (0)
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static ssize_t
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show_fan_div_reg(struct device *dev, char *buf, int nr)
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{
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@ -686,11 +655,6 @@ sysfs_fan_div(1);
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sysfs_fan_div(2);
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sysfs_fan_div(3);
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#define device_create_file_fan_div(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
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} while (0)
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static ssize_t
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show_pwm_reg(struct device *dev, char *buf, int nr)
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{
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@ -787,16 +751,6 @@ sysfs_pwmenable(2); /* only PWM2 can be enabled/disabled */
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sysfs_pwm(3);
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sysfs_pwm(4);
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#define device_create_file_pwm(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_pwm##offset); \
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} while (0)
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#define device_create_file_pwmenable(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_pwm##offset##_enable); \
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} while (0)
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static ssize_t
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show_sensor_reg(struct device *dev, char *buf, int nr)
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{
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@ -865,11 +819,6 @@ sysfs_sensor(1);
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sysfs_sensor(2);
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sysfs_sensor(3);
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#define device_create_file_sensor(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
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} while (0)
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/* This function is called when:
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* w83781d_driver is inserted (when this module is loaded), for each
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available adapter
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@ -994,11 +943,69 @@ ERROR_SC_0:
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return err;
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}
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#define IN_UNIT_ATTRS(X) \
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&dev_attr_in##X##_input.attr, \
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&dev_attr_in##X##_min.attr, \
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&dev_attr_in##X##_max.attr
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#define FAN_UNIT_ATTRS(X) \
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&dev_attr_fan##X##_input.attr, \
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&dev_attr_fan##X##_min.attr, \
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&dev_attr_fan##X##_div.attr
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#define TEMP_UNIT_ATTRS(X) \
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&dev_attr_temp##X##_input.attr, \
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&dev_attr_temp##X##_max.attr, \
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&dev_attr_temp##X##_max_hyst.attr
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static struct attribute* w83781d_attributes[] = {
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IN_UNIT_ATTRS(0),
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IN_UNIT_ATTRS(2),
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IN_UNIT_ATTRS(3),
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IN_UNIT_ATTRS(4),
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IN_UNIT_ATTRS(5),
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IN_UNIT_ATTRS(6),
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FAN_UNIT_ATTRS(1),
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FAN_UNIT_ATTRS(2),
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FAN_UNIT_ATTRS(3),
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TEMP_UNIT_ATTRS(1),
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TEMP_UNIT_ATTRS(2),
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&dev_attr_cpu0_vid.attr,
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&dev_attr_vrm.attr,
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&dev_attr_alarms.attr,
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&dev_attr_beep_mask.attr,
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&dev_attr_beep_enable.attr,
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NULL
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};
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static const struct attribute_group w83781d_group = {
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.attrs = w83781d_attributes,
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};
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static struct attribute *w83781d_attributes_opt[] = {
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IN_UNIT_ATTRS(1),
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IN_UNIT_ATTRS(7),
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IN_UNIT_ATTRS(8),
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TEMP_UNIT_ATTRS(3),
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&dev_attr_pwm1.attr,
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&dev_attr_pwm2.attr,
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&dev_attr_pwm2_enable.attr,
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&dev_attr_pwm3.attr,
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&dev_attr_pwm4.attr,
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&dev_attr_temp1_type.attr,
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&dev_attr_temp2_type.attr,
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&dev_attr_temp3_type.attr,
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NULL
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};
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static const struct attribute_group w83781d_group_opt = {
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.attrs = w83781d_attributes_opt,
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};
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static int
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w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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{
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int i = 0, val1 = 0, val2;
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struct i2c_client *new_client;
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struct i2c_client *client;
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struct device *dev;
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struct w83781d_data *data;
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int err;
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const char *client_name = "";
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@ -1075,13 +1082,14 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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goto ERROR1;
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}
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new_client = &data->client;
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i2c_set_clientdata(new_client, data);
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new_client->addr = address;
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client = &data->client;
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i2c_set_clientdata(client, data);
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client->addr = address;
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mutex_init(&data->lock);
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new_client->adapter = adapter;
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new_client->driver = is_isa ? &w83781d_isa_driver : &w83781d_driver;
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new_client->flags = 0;
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client->adapter = adapter;
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client->driver = is_isa ? &w83781d_isa_driver : &w83781d_driver;
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client->flags = 0;
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dev = &client->dev;
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/* Now, we do the remaining detection. */
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@ -1090,20 +1098,18 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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force_*=... parameter, and the Winbond will be reset to the right
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bank. */
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if (kind < 0) {
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if (w83781d_read_value(new_client, W83781D_REG_CONFIG) & 0x80) {
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dev_dbg(&new_client->dev, "Detection failed at step "
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"3\n");
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if (w83781d_read_value(client, W83781D_REG_CONFIG) & 0x80) {
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dev_dbg(dev, "Detection failed at step 3\n");
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err = -ENODEV;
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goto ERROR2;
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}
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val1 = w83781d_read_value(new_client, W83781D_REG_BANK);
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val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
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val1 = w83781d_read_value(client, W83781D_REG_BANK);
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val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN);
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/* Check for Winbond or Asus ID if in bank 0 */
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if ((!(val1 & 0x07)) &&
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(((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3))
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|| ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) {
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dev_dbg(&new_client->dev, "Detection failed at step "
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"4\n");
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dev_dbg(dev, "Detection failed at step 4\n");
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err = -ENODEV;
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goto ERROR2;
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}
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@ -1112,9 +1118,8 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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if ((!is_isa) && (((!(val1 & 0x80)) && (val2 == 0xa3)) ||
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((val1 & 0x80) && (val2 == 0x5c)))) {
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if (w83781d_read_value
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(new_client, W83781D_REG_I2C_ADDR) != address) {
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dev_dbg(&new_client->dev, "Detection failed "
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"at step 5\n");
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(client, W83781D_REG_I2C_ADDR) != address) {
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dev_dbg(dev, "Detection failed at step 5\n");
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err = -ENODEV;
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goto ERROR2;
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}
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@ -1123,27 +1128,26 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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/* We have either had a force parameter, or we have already detected the
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Winbond. Put it now into bank 0 and Vendor ID High Byte */
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w83781d_write_value(new_client, W83781D_REG_BANK,
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(w83781d_read_value(new_client,
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W83781D_REG_BANK) & 0x78) |
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0x80);
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w83781d_write_value(client, W83781D_REG_BANK,
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(w83781d_read_value(client, W83781D_REG_BANK)
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& 0x78) | 0x80);
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/* Determine the chip type. */
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if (kind <= 0) {
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/* get vendor ID */
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val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
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val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN);
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if (val2 == 0x5c)
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vendid = winbond;
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else if (val2 == 0x12)
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vendid = asus;
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else {
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dev_dbg(&new_client->dev, "Chip was made by neither "
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dev_dbg(dev, "Chip was made by neither "
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"Winbond nor Asus?\n");
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err = -ENODEV;
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goto ERROR2;
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}
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val1 = w83781d_read_value(new_client, W83781D_REG_WCHIPID);
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val1 = w83781d_read_value(client, W83781D_REG_WCHIPID);
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if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond)
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kind = w83781d;
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else if (val1 == 0x30 && vendid == winbond)
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@ -1157,7 +1161,7 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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kind = as99127f;
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else {
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if (kind == 0)
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dev_warn(&new_client->dev, "Ignoring 'force' "
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dev_warn(dev, "Ignoring 'force' "
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"parameter for unknown chip at "
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"adapter %d, address 0x%02x\n",
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i2c_adapter_id(adapter), address);
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@ -1179,20 +1183,20 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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}
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/* Fill in the remaining client fields and put into the global list */
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strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
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strlcpy(client->name, client_name, I2C_NAME_SIZE);
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data->type = kind;
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data->valid = 0;
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mutex_init(&data->update_lock);
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/* Tell the I2C layer a new client has arrived */
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if ((err = i2c_attach_client(new_client)))
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if ((err = i2c_attach_client(client)))
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goto ERROR2;
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/* attach secondary i2c lm75-like clients */
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if (!is_isa) {
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if ((err = w83781d_detect_subclients(adapter, address,
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kind, new_client)))
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kind, client)))
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goto ERROR3;
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} else {
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data->lm75[0] = NULL;
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@ -1200,11 +1204,11 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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}
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/* Initialize the chip */
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w83781d_init_client(new_client);
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w83781d_init_client(client);
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/* A few vars need to be filled upon startup */
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for (i = 1; i <= 3; i++) {
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data->fan_min[i - 1] = w83781d_read_value(new_client,
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data->fan_min[i - 1] = w83781d_read_value(client,
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W83781D_REG_FAN_MIN(i));
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}
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if (kind != w83781d && kind != as99127f)
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@ -1212,65 +1216,68 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
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data->pwmenable[i] = 1;
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/* Register sysfs hooks */
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data->class_dev = hwmon_device_register(&new_client->dev);
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if ((err = sysfs_create_group(&dev->kobj, &w83781d_group)))
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goto ERROR4;
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if (kind != w83783s) {
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if ((err = device_create_file(dev, &dev_attr_in1_input))
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|| (err = device_create_file(dev, &dev_attr_in1_min))
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|| (err = device_create_file(dev, &dev_attr_in1_max)))
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goto ERROR4;
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}
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if (kind != as99127f && kind != w83781d && kind != w83783s) {
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if ((err = device_create_file(dev, &dev_attr_in7_input))
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|| (err = device_create_file(dev, &dev_attr_in7_min))
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|| (err = device_create_file(dev, &dev_attr_in7_max))
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|| (err = device_create_file(dev, &dev_attr_in8_input))
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|| (err = device_create_file(dev, &dev_attr_in8_min))
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|| (err = device_create_file(dev, &dev_attr_in8_max)))
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goto ERROR4;
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}
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if (kind != w83783s) {
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if ((err = device_create_file(dev, &dev_attr_temp3_input))
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|| (err = device_create_file(dev, &dev_attr_temp3_max))
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|| (err = device_create_file(dev,
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&dev_attr_temp3_max_hyst)))
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goto ERROR4;
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}
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if (kind != w83781d && kind != as99127f) {
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if ((err = device_create_file(dev, &dev_attr_pwm1))
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|| (err = device_create_file(dev, &dev_attr_pwm2))
|
||||
|| (err = device_create_file(dev, &dev_attr_pwm2_enable)))
|
||||
goto ERROR4;
|
||||
}
|
||||
if (kind == w83782d && !is_isa) {
|
||||
if ((err = device_create_file(dev, &dev_attr_pwm3))
|
||||
|| (err = device_create_file(dev, &dev_attr_pwm4)))
|
||||
goto ERROR4;
|
||||
}
|
||||
|
||||
if (kind != as99127f && kind != w83781d) {
|
||||
if ((err = device_create_file(dev, &dev_attr_temp1_type))
|
||||
|| (err = device_create_file(dev,
|
||||
&dev_attr_temp2_type)))
|
||||
goto ERROR4;
|
||||
if (kind != w83783s) {
|
||||
if ((err = device_create_file(dev,
|
||||
&dev_attr_temp3_type)))
|
||||
goto ERROR4;
|
||||
}
|
||||
}
|
||||
|
||||
data->class_dev = hwmon_device_register(dev);
|
||||
if (IS_ERR(data->class_dev)) {
|
||||
err = PTR_ERR(data->class_dev);
|
||||
goto ERROR4;
|
||||
}
|
||||
|
||||
device_create_file_in(new_client, 0);
|
||||
if (kind != w83783s)
|
||||
device_create_file_in(new_client, 1);
|
||||
device_create_file_in(new_client, 2);
|
||||
device_create_file_in(new_client, 3);
|
||||
device_create_file_in(new_client, 4);
|
||||
device_create_file_in(new_client, 5);
|
||||
device_create_file_in(new_client, 6);
|
||||
if (kind != as99127f && kind != w83781d && kind != w83783s) {
|
||||
device_create_file_in(new_client, 7);
|
||||
device_create_file_in(new_client, 8);
|
||||
}
|
||||
|
||||
device_create_file_fan(new_client, 1);
|
||||
device_create_file_fan(new_client, 2);
|
||||
device_create_file_fan(new_client, 3);
|
||||
|
||||
device_create_file_temp(new_client, 1);
|
||||
device_create_file_temp(new_client, 2);
|
||||
if (kind != w83783s)
|
||||
device_create_file_temp(new_client, 3);
|
||||
|
||||
device_create_file_vid(new_client);
|
||||
device_create_file_vrm(new_client);
|
||||
|
||||
device_create_file_fan_div(new_client, 1);
|
||||
device_create_file_fan_div(new_client, 2);
|
||||
device_create_file_fan_div(new_client, 3);
|
||||
|
||||
device_create_file_alarms(new_client);
|
||||
|
||||
device_create_file_beep(new_client);
|
||||
|
||||
if (kind != w83781d && kind != as99127f) {
|
||||
device_create_file_pwm(new_client, 1);
|
||||
device_create_file_pwm(new_client, 2);
|
||||
device_create_file_pwmenable(new_client, 2);
|
||||
}
|
||||
if (kind == w83782d && !is_isa) {
|
||||
device_create_file_pwm(new_client, 3);
|
||||
device_create_file_pwm(new_client, 4);
|
||||
}
|
||||
|
||||
if (kind != as99127f && kind != w83781d) {
|
||||
device_create_file_sensor(new_client, 1);
|
||||
device_create_file_sensor(new_client, 2);
|
||||
if (kind != w83783s)
|
||||
device_create_file_sensor(new_client, 3);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
ERROR4:
|
||||
sysfs_remove_group(&dev->kobj, &w83781d_group);
|
||||
sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
|
||||
|
||||
if (data->lm75[1]) {
|
||||
i2c_detach_client(data->lm75[1]);
|
||||
kfree(data->lm75[1]);
|
||||
@ -1280,7 +1287,7 @@ ERROR4:
|
||||
kfree(data->lm75[0]);
|
||||
}
|
||||
ERROR3:
|
||||
i2c_detach_client(new_client);
|
||||
i2c_detach_client(client);
|
||||
ERROR2:
|
||||
kfree(data);
|
||||
ERROR1:
|
||||
@ -1297,9 +1304,11 @@ w83781d_detach_client(struct i2c_client *client)
|
||||
int err;
|
||||
|
||||
/* main client */
|
||||
if (data)
|
||||
if (data) {
|
||||
hwmon_device_unregister(data->class_dev);
|
||||
|
||||
sysfs_remove_group(&client->dev.kobj, &w83781d_group);
|
||||
sysfs_remove_group(&client->dev.kobj, &w83781d_group_opt);
|
||||
}
|
||||
if (i2c_is_isa_client(client))
|
||||
release_region(client->addr, W83781D_EXTENT);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user