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Commit 0e39e01c authored by Jean Delvare's avatar Jean Delvare Committed by Greg Kroah-Hartman
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hwmon: Fix unchecked return status, batch 4 

hwmon: Fix unchecked return status, batch 4

Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().

Note: f71805f actually checked the status from device_create_file
already. However it did not remove the files on device destruction.
It was also an opportunity to use sysfs_create/remove_group instead
of hand-made loops. This makes the changes much more important but
I think the result is worth it.
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 681c6f7a
Expand all Show whitespace changes
Inline Side-by-side
Showing with 357 additions and 264 deletions
drivers/hwmon/f71805f.c
View file @ 0e39e01c
This diff is collapsed.
drivers/hwmon/lm63.c
View file @ 0e39e01c
...@@ -46,6 +46,7 @@ ...@@ -46,6 +46,7 @@
#include <linux/hwmon.h> #include <linux/hwmon.h>
#include <linux/err.h> #include <linux/err.h>
#include <linux/mutex.h> #include <linux/mutex.h>
#include <linux/sysfs.h>
/* /*
* Addresses to scan * Addresses to scan
...@@ -370,6 +371,42 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); ...@@ -370,6 +371,42 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
/* Raw alarm file for compatibility */ /* Raw alarm file for compatibility */
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static struct attribute *lm63_attributes[] = {
&dev_attr_pwm1.attr,
&dev_attr_pwm1_enable.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
&dev_attr_temp2_crit_hyst.attr,
&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_input_fault.dev_attr.attr,
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&dev_attr_alarms.attr,
NULL
};
static const struct attribute_group lm63_group = {
.attrs = lm63_attributes,
};
static struct attribute *lm63_attributes_fan1[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
&sensor_dev_attr_fan1_min_alarm.dev_attr.attr,
NULL
};
static const struct attribute_group lm63_group_fan1 = {
.attrs = lm63_attributes_fan1,
};
/* /*
* Real code * Real code
*/ */
...@@ -456,50 +493,26 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind) ...@@ -456,50 +493,26 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
lm63_init_client(new_client); lm63_init_client(new_client);
/* Register sysfs hooks */ /* Register sysfs hooks */
data->class_dev = hwmon_device_register(&new_client->dev); if ((err = sysfs_create_group(&new_client->dev.kobj,
if (IS_ERR(data->class_dev)) { &lm63_group)))
err = PTR_ERR(data->class_dev);
goto exit_detach; goto exit_detach;
if (data->config & 0x04) { /* tachometer enabled */
if ((err = sysfs_create_group(&new_client->dev.kobj,
&lm63_group_fan1)))
goto exit_remove_files;
} }
if (data->config & 0x04) { /* tachometer enabled */ data->class_dev = hwmon_device_register(&new_client->dev);
device_create_file(&new_client->dev, if (IS_ERR(data->class_dev)) {
&sensor_dev_attr_fan1_input.dev_attr); err = PTR_ERR(data->class_dev);
device_create_file(&new_client->dev, goto exit_remove_files;
&sensor_dev_attr_fan1_min.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_fan1_min_alarm.dev_attr);
} }
device_create_file(&new_client->dev, &dev_attr_pwm1);
device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_input.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_input.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_min.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_max.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_max.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_crit.dev_attr);
device_create_file(&new_client->dev, &dev_attr_temp2_crit_hyst);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_input_fault.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_min_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_crit_alarm.dev_attr);
device_create_file(&new_client->dev, &dev_attr_alarms);
return 0; return 0;
exit_remove_files:
sysfs_remove_group(&new_client->dev.kobj, &lm63_group);
sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1);
exit_detach: exit_detach:
i2c_detach_client(new_client); i2c_detach_client(new_client);
exit_free: exit_free:
...@@ -549,6 +562,8 @@ static int lm63_detach_client(struct i2c_client *client) ...@@ -549,6 +562,8 @@ static int lm63_detach_client(struct i2c_client *client)
int err; int err;
hwmon_device_unregister(data->class_dev); hwmon_device_unregister(data->class_dev);
sysfs_remove_group(&client->dev.kobj, &lm63_group);
sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
if ((err = i2c_detach_client(client))) if ((err = i2c_detach_client(client)))
return err; return err;
......
drivers/hwmon/lm83.c
View file @ 0e39e01c
...@@ -40,6 +40,7 @@ ...@@ -40,6 +40,7 @@
#include <linux/hwmon.h> #include <linux/hwmon.h>
#include <linux/err.h> #include <linux/err.h>
#include <linux/mutex.h> #include <linux/mutex.h>
#include <linux/sysfs.h>
/* /*
* Addresses to scan * Addresses to scan
...@@ -234,6 +235,48 @@ static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 15); ...@@ -234,6 +235,48 @@ static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 15);
/* Raw alarm file for compatibility */ /* Raw alarm file for compatibility */
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static struct attribute *lm83_attributes[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp3_crit.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_input_fault.dev_attr.attr,
&sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&dev_attr_alarms.attr,
NULL
};
static const struct attribute_group lm83_group = {
.attrs = lm83_attributes,
};
static struct attribute *lm83_attributes_opt[] = {
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp4_input.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp4_max.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
&sensor_dev_attr_temp4_crit.dev_attr.attr,
&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp4_input_fault.dev_attr.attr,
&sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_input_fault.dev_attr.attr,
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
NULL
};
static const struct attribute_group lm83_group_opt = {
.attrs = lm83_attributes_opt,
};
/* /*
* Real code * Real code
*/ */
...@@ -342,82 +385,32 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) ...@@ -342,82 +385,32 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
goto exit_free; goto exit_free;
/* /*
* Initialize the LM83 chip * Register sysfs hooks
* (Nothing to do for this one.)
*/
/* 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;
}
/*
* The LM82 can only monitor one external diode which is * The LM82 can only monitor one external diode which is
* at the same register as the LM83 temp3 entry - so we * at the same register as the LM83 temp3 entry - so we
* declare 1 and 3 common, and then 2 and 4 only for the LM83. * declare 1 and 3 common, and then 2 and 4 only for the LM83.
*/ */
device_create_file(&new_client->dev, if ((err = sysfs_create_group(&new_client->dev.kobj, &lm83_group)))
&sensor_dev_attr_temp1_input.dev_attr); goto exit_detach;
device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_input.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_max.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_max.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_crit.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_crit.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_input_fault.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_crit_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp3_crit_alarm.dev_attr);
device_create_file(&new_client->dev, &dev_attr_alarms);
if (kind == lm83) { if (kind == lm83) {
device_create_file(&new_client->dev, if ((err = sysfs_create_group(&new_client->dev.kobj,
&sensor_dev_attr_temp2_input.dev_attr); &lm83_group_opt)))
device_create_file(&new_client->dev, goto exit_remove_files;
&sensor_dev_attr_temp4_input.dev_attr); }
device_create_file(&new_client->dev, data->class_dev = hwmon_device_register(&new_client->dev);
&sensor_dev_attr_temp2_max.dev_attr); if (IS_ERR(data->class_dev)) {
device_create_file(&new_client->dev, err = PTR_ERR(data->class_dev);
&sensor_dev_attr_temp4_max.dev_attr); goto exit_remove_files;
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_crit.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp4_crit.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_input_fault.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp4_input_fault.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp4_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_crit_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp4_crit_alarm.dev_attr);
} }
return 0; return 0;
exit_remove_files:
sysfs_remove_group(&new_client->dev.kobj, &lm83_group);
sysfs_remove_group(&new_client->dev.kobj, &lm83_group_opt);
exit_detach: exit_detach:
i2c_detach_client(new_client); i2c_detach_client(new_client);
exit_free: exit_free:
...@@ -432,6 +425,8 @@ static int lm83_detach_client(struct i2c_client *client) ...@@ -432,6 +425,8 @@ static int lm83_detach_client(struct i2c_client *client)
int err; int err;
hwmon_device_unregister(data->class_dev); hwmon_device_unregister(data->class_dev);
sysfs_remove_group(&client->dev.kobj, &lm83_group);
sysfs_remove_group(&client->dev.kobj, &lm83_group_opt);
if ((err = i2c_detach_client(client))) if ((err = i2c_detach_client(client)))
return err; return err;
......
drivers/hwmon/lm90.c
View file @ 0e39e01c
...@@ -79,6 +79,7 @@ ...@@ -79,6 +79,7 @@
#include <linux/hwmon.h> #include <linux/hwmon.h>
#include <linux/err.h> #include <linux/err.h>
#include <linux/mutex.h> #include <linux/mutex.h>
#include <linux/sysfs.h>
/* /*
* Addresses to scan * Addresses to scan
...@@ -366,6 +367,33 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); ...@@ -366,6 +367,33 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
/* Raw alarm file for compatibility */ /* Raw alarm file for compatibility */
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static struct attribute *lm90_attributes[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_input_fault.dev_attr.attr,
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&dev_attr_alarms.attr,
NULL
};
static const struct attribute_group lm90_group = {
.attrs = lm90_attributes,
};
/* pec used for ADM1032 only */ /* pec used for ADM1032 only */
static ssize_t show_pec(struct device *dev, struct device_attribute *dummy, static ssize_t show_pec(struct device *dev, struct device_attribute *dummy,
char *buf) char *buf)
...@@ -589,54 +617,25 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) ...@@ -589,54 +617,25 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
lm90_init_client(new_client); lm90_init_client(new_client);
/* Register sysfs hooks */ /* Register sysfs hooks */
if ((err = sysfs_create_group(&new_client->dev.kobj, &lm90_group)))
goto exit_detach;
if (new_client->flags & I2C_CLIENT_PEC) {
if ((err = device_create_file(&new_client->dev,
&dev_attr_pec)))
goto exit_remove_files;
}
data->class_dev = hwmon_device_register(&new_client->dev); data->class_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->class_dev)) { if (IS_ERR(data->class_dev)) {
err = PTR_ERR(data->class_dev); err = PTR_ERR(data->class_dev);
goto exit_detach; goto exit_remove_files;
} }
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_input.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_input.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_min.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_min.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_max.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_max.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_crit.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_crit.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_crit_hyst.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_crit_hyst.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_input_fault.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_min_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_min_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_max_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp1_crit_alarm.dev_attr);
device_create_file(&new_client->dev,
&sensor_dev_attr_temp2_crit_alarm.dev_attr);
device_create_file(&new_client->dev, &dev_attr_alarms);
if (new_client->flags & I2C_CLIENT_PEC)
device_create_file(&new_client->dev, &dev_attr_pec);
return 0; return 0;
exit_remove_files:
sysfs_remove_group(&new_client->dev.kobj, &lm90_group);
device_remove_file(&new_client->dev, &dev_attr_pec);
exit_detach: exit_detach:
i2c_detach_client(new_client); i2c_detach_client(new_client);
exit_free: exit_free:
...@@ -669,6 +668,8 @@ static int lm90_detach_client(struct i2c_client *client) ...@@ -669,6 +668,8 @@ static int lm90_detach_client(struct i2c_client *client)
int err; int err;
hwmon_device_unregister(data->class_dev); hwmon_device_unregister(data->class_dev);
sysfs_remove_group(&client->dev.kobj, &lm90_group);
device_remove_file(&client->dev, &dev_attr_pec);
if ((err = i2c_detach_client(client))) if ((err = i2c_detach_client(client)))
return err; return err;
......
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