diff options
author | Mark M. Hoffman <mhoffman@lightlink.com> | 2005-07-15 21:39:18 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-09-05 09:14:08 -0700 |
commit | 943b0830cebe4711354945ed3cb44e84152aaca0 (patch) | |
tree | 1963da8d8867069617404a8f92739035c6faca02 /drivers | |
parent | 1236441f38b6a98caf4c7983e7efdecc2d1527b5 (diff) |
[PATCH] I2C hwmon: add hwmon sysfs class to drivers
This patch modifies sensors chip drivers to make use of the new
sysfs class "hwmon".
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
33 files changed, 522 insertions, 53 deletions
diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c index d2c774c32f45..a483d96e4cef 100644 --- a/drivers/hwmon/adm1021.c +++ b/drivers/hwmon/adm1021.c @@ -25,6 +25,8 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/i2c-sensor.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* Addresses to scan */ @@ -89,6 +91,7 @@ clearing it. Weird, ey? --Phil */ /* Each client has this additional data */ struct adm1021_data { struct i2c_client client; + struct class_device *class_dev; enum chips type; struct semaphore update_lock; @@ -295,6 +298,12 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind) adm1021_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 error2; + } + device_create_file(&new_client->dev, &dev_attr_temp1_max); device_create_file(&new_client->dev, &dev_attr_temp1_min); device_create_file(&new_client->dev, &dev_attr_temp1_input); @@ -305,6 +314,8 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +error2: + i2c_detach_client(new_client); error1: kfree(data); error0: @@ -322,14 +333,17 @@ static void adm1021_init_client(struct i2c_client *client) static int adm1021_detach_client(struct i2c_client *client) { + struct adm1021_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; } diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c index e452d0daf906..b68b292c00d4 100644 --- a/drivers/hwmon/adm1025.c +++ b/drivers/hwmon/adm1025.c @@ -52,6 +52,8 @@ #include <linux/i2c.h> #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* * Addresses to scan @@ -132,6 +134,7 @@ static struct i2c_driver adm1025_driver = { struct adm1025_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 */ @@ -416,6 +419,12 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) adm1025_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_in0_input); device_create_file(&new_client->dev, &dev_attr_in1_input); device_create_file(&new_client->dev, &dev_attr_in2_input); @@ -452,6 +461,8 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -502,15 +513,18 @@ static void adm1025_init_client(struct i2c_client *client) static int adm1025_detach_client(struct i2c_client *client) { + struct adm1025_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; } diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index c8a7f47911f9..eb55133a13ee 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -31,6 +31,8 @@ #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> #include <linux/hwmon-sysfs.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; @@ -259,6 +261,7 @@ struct pwm_data { struct adm1026_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore lock; enum chips type; @@ -324,8 +327,10 @@ int adm1026_attach_adapter(struct i2c_adapter *adapter) int adm1026_detach_client(struct i2c_client *client) { + struct adm1026_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; } @@ -1555,6 +1560,12 @@ int adm1026_detect(struct i2c_adapter *adapter, int address, adm1026_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 exitdetach; + } + device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr); device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr); device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr); @@ -1690,6 +1701,8 @@ int adm1026_detect(struct i2c_adapter *adapter, int address, return 0; /* Error out and cleanup code */ +exitdetach: + i2c_detach_client(new_client); exitfree: kfree(data); exit: diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c index 936250957270..ac3b1542556e 100644 --- a/drivers/hwmon/adm1031.c +++ b/drivers/hwmon/adm1031.c @@ -27,6 +27,8 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/i2c-sensor.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* Following macros takes channel parameter starting from 0 to 2 */ #define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr)) @@ -69,6 +71,7 @@ typedef u8 auto_chan_table_t[8][2]; /* Each client has this additional data */ struct adm1031_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore update_lock; int chip_type; char valid; /* !=0 if following fields are valid */ @@ -788,6 +791,12 @@ static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind) adm1031_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_fan1_input); device_create_file(&new_client->dev, &dev_attr_fan1_div); device_create_file(&new_client->dev, &dev_attr_fan1_min); @@ -833,6 +842,8 @@ static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -841,11 +852,14 @@ exit: static int adm1031_detach_client(struct i2c_client *client) { + struct adm1031_data *data = i2c_get_clientdata(client); int ret; + + hwmon_device_unregister(data->class_dev); if ((ret = i2c_detach_client(client)) != 0) { return ret; } - kfree(i2c_get_clientdata(client)); + kfree(data); return 0; } diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index ce2a6eb93f6e..7ef61206ba10 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -47,6 +47,8 @@ #include <linux/i2c.h> #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, @@ -150,6 +152,7 @@ static struct i2c_driver adm9240_driver = { struct adm9240_data { enum chips type; struct i2c_client client; + struct class_device *class_dev; struct semaphore update_lock; char valid; unsigned long last_updated_measure; @@ -582,6 +585,12 @@ static int adm9240_detect(struct i2c_adapter *adapter, int address, int kind) adm9240_init_client(new_client); /* populate sysfs filesystem */ + 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_in0_input); device_create_file(&new_client->dev, &dev_attr_in0_min); device_create_file(&new_client->dev, &dev_attr_in0_max); @@ -615,6 +624,9 @@ static int adm9240_detect(struct i2c_adapter *adapter, int address, int kind) device_create_file(&new_client->dev, &dev_attr_cpu0_vid); return 0; + +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -630,15 +642,18 @@ static int adm9240_attach_adapter(struct i2c_adapter *adapter) static int adm9240_detach_client(struct i2c_client *client) { + struct adm9240_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; } diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c index 70d996d6fe0a..3ab7a2ddafba 100644 --- a/drivers/hwmon/asb100.c +++ b/drivers/hwmon/asb100.c @@ -41,6 +41,8 @@ #include <linux/i2c.h> #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> +#include <linux/hwmon.h> +#include <linux/err.h> #include <linux/init.h> #include <linux/jiffies.h> #include "lm75.h" @@ -183,6 +185,7 @@ static u8 DIV_TO_REG(long val) dynamically allocated, at the same time the client itself is allocated. */ struct asb100_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore lock; enum chips type; @@ -821,6 +824,12 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind) data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2)); /* 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 ERROR3; + } + device_create_file_in(new_client, 0); device_create_file_in(new_client, 1); device_create_file_in(new_client, 2); @@ -847,6 +856,11 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +ERROR3: + i2c_detach_client(data->lm75[1]); + i2c_detach_client(data->lm75[0]); + kfree(data->lm75[1]); + kfree(data->lm75[0]); ERROR2: i2c_detach_client(new_client); ERROR1: @@ -857,21 +871,26 @@ ERROR0: static int asb100_detach_client(struct i2c_client *client) { + struct asb100_data *data = i2c_get_clientdata(client); int err; + /* main client */ + if (data) + 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; } - if (i2c_get_clientdata(client)==NULL) { - /* subclients */ + /* main client */ + if (data) + kfree(data); + + /* subclient */ + else kfree(client); - } else { - /* main client */ - kfree(i2c_get_clientdata(client)); - } return 0; } diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c index fca3fc1cef72..5f79f07a4ab8 100644 --- a/drivers/hwmon/atxp1.c +++ b/drivers/hwmon/atxp1.c @@ -25,6 +25,8 @@ #include <linux/i2c.h> #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> +#include <linux/hwmon.h> +#include <linux/err.h> MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("System voltages control via Attansic ATXP1"); @@ -59,6 +61,7 @@ static struct i2c_driver atxp1_driver = { struct atxp1_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore update_lock; unsigned long last_updated; u8 valid; @@ -317,6 +320,12 @@ static int atxp1_detect(struct i2c_adapter *adapter, int address, int kind) goto exit_free; } + 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_gpio1); device_create_file(&new_client->dev, &dev_attr_gpio2); device_create_file(&new_client->dev, &dev_attr_cpu0_vid); @@ -326,6 +335,8 @@ static int atxp1_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -334,14 +345,17 @@ exit: static int atxp1_detach_client(struct i2c_client * client) { + struct atxp1_data * data = i2c_get_clientdata(client); int err; + hwmon_device_unregister(data->class_dev); + err = i2c_detach_client(client); if (err) dev_err(&client->dev, "Failed to detach client.\n"); else - kfree(i2c_get_clientdata(client)); + kfree(data); return err; }; diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c index 5360d58804f6..9ed21ac46e97 100644 --- a/drivers/hwmon/ds1621.c +++ b/drivers/hwmon/ds1621.c @@ -27,6 +27,8 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/i2c-sensor.h> +#include <linux/hwmon.h> +#include <linux/err.h> #include "lm75.h" /* Addresses to scan */ @@ -71,6 +73,7 @@ MODULE_PARM_DESC(polarity, "Output's polarity: 0 = active high, 1 = active low") /* Each client has this additional data */ struct ds1621_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -250,6 +253,12 @@ int ds1621_detect(struct i2c_adapter *adapter, int address, ds1621_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_alarms); device_create_file(&new_client->dev, &dev_attr_temp1_input); device_create_file(&new_client->dev, &dev_attr_temp1_min); @@ -259,6 +268,8 @@ int ds1621_detect(struct i2c_adapter *adapter, int address, /* OK, this is not exactly good programming practice, usually. But it is very code-efficient in this case. */ + exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -267,15 +278,18 @@ int ds1621_detect(struct i2c_adapter *adapter, int address, static int ds1621_detach_client(struct i2c_client *client) { + struct ds1621_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; } diff --git a/drivers/hwmon/fscher.c b/drivers/hwmon/fscher.c index da411741c2c5..b794580a0726 100644 --- a/drivers/hwmon/fscher.c +++ b/drivers/hwmon/fscher.c @@ -32,6 +32,8 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/i2c-sensor.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* * Addresses to scan @@ -132,6 +134,7 @@ static struct i2c_driver fscher_driver = { struct fscher_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 */ @@ -341,6 +344,12 @@ static int fscher_detect(struct i2c_adapter *adapter, int address, int kind) fscher_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_revision(new_client); device_create_file_alarms(new_client); device_create_file_control(new_client); @@ -360,6 +369,8 @@ static int fscher_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -368,15 +379,18 @@ exit: static int fscher_detach_client(struct i2c_client *client) { + struct fscher_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; } diff --git a/drivers/hwmon/fscpos.c b/drivers/hwmon/fscpos.c index 301ae98bd0ad..4cb33b231124 100644 --- a/drivers/hwmon/fscpos.c +++ b/drivers/hwmon/fscpos.c @@ -36,6 +36,8 @@ #include <linux/i2c.h> #include <linux/i2c-sensor.h> #include <linux/init.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* * Addresses to scan @@ -113,6 +115,7 @@ static struct i2c_driver fscpos_driver = { */ struct fscpos_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore update_lock; char valid; /* 0 until following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -496,6 +499,12 @@ int fscpos_detect(struct i2c_adapter *adapter, int address, int kind) dev_info(&new_client->dev, "Found fscpos chip, rev %u\n", data->revision); /* 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_event); device_create_file(&new_client->dev, &dev_attr_in0_input); device_create_file(&new_client->dev, &dev_attr_in1_input); @@ -526,6 +535,8 @@ int fscpos_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -534,14 +545,17 @@ exit: static int fscpos_detach_client(struct i2c_client *client) { + struct fscpos_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; } diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c index 6bedf729dcf5..49972929a69b 100644 --- a/drivers/hwmon/gl518sm.c +++ b/drivers/hwmon/gl518sm.c @@ -42,6 +42,8 @@ #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[] = { 0x2c, 0x2d, I2C_CLIENT_END }; @@ -117,6 +119,7 @@ static inline u8 FAN_TO_REG(long rpm, int div) /* Each client has this additional data */ struct gl518_data { struct i2c_client client; + struct class_device *class_dev; enum chips type; struct semaphore update_lock; @@ -419,6 +422,12 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind) gl518_init_client((struct i2c_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_in0_input); device_create_file(&new_client->dev, &dev_attr_in1_input); device_create_file(&new_client->dev, &dev_attr_in2_input); @@ -450,6 +459,8 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind) /* OK, this is not exactly good programming practice, usually. But it is very code-efficient in this case. */ +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -477,16 +488,18 @@ static void gl518_init_client(struct i2c_client *client) static int gl518_detach_client(struct i2c_client *client) { + struct gl518_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; } diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c index 80ae8d30c2af..ce482e17e03c 100644 --- a/drivers/hwmon/gl520sm.c +++ b/drivers/hwmon/gl520sm.c @@ -28,6 +28,8 @@ #include <linux/i2c.h> #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> +#include <linux/hwmon.h> +#include <linux/err.h> /* Type of the extra sensor */ static unsigned short extra_sensor_type; @@ -120,6 +122,7 @@ static struct i2c_driver gl520_driver = { /* Client data */ struct gl520_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore update_lock; char valid; /* zero until the following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -571,6 +574,12 @@ static int gl520_detect(struct i2c_adapter *adapter, int address, int kind) gl520_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_vid(new_client, 0); device_create_file_in(new_client, 0); @@ -592,6 +601,8 @@ static int gl520_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -639,15 +650,18 @@ static void gl520_init_client(struct i2c_client *client) static int gl520_detach_client(struct i2c_client *client) { + struct gl520_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; } diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index db20c9e47393..92c5b2420f9b 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -39,6 +39,8 @@ #include <linux/i2c-sensor.h> #include <linux/i2c-vid.h> #include <linux/hwmon-sysfs.h> +#include <linux/hwmon.h> +#include <linux/err.h> #include <asm/io.h> @@ -192,6 +194,7 @@ static int DIV_TO_REG(int val) allocated. */ struct it87_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore lock; enum chips type; @@ -840,6 +843,12 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind) it87_init_client(new_client, data); /* 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 ERROR3; + } + device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr); device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr); device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr); @@ -904,6 +913,8 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +ERROR3: + i2c_detach_client(new_client); ERROR2: kfree(data); ERROR1: @@ -915,8 +926,11 @@ ERROR0: static int it87_detach_client(struct i2c_client *client) { + struct it87_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"); @@ -925,7 +939,7 @@ static int it87_detach_client(struct i2c_client *client) if(i2c_is_isa_client(client)) release_region(client->addr, IT87_EXTENT); - kfree(i2c_get_clientdata(client)); + kfree(data); |