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authorJean Delvare <khali@linux-fr.org>2006-09-24 23:16:40 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-29 02:31:18 +0400
commit0e39e01c908fdc498fff0d788fd7b955ab75ebb6 (patch)
tree2e117466ec9a60f3dac6d678e95af97454aa6c8c /drivers/hwmon/lm90.c
parent681c6f7a6702f208d48b501c8829dbc03a2ca238 (diff)
downloadlinux-0e39e01c908fdc498fff0d788fd7b955ab75ebb6.tar.xz
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: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/hwmon/lm90.c')
-rw-r--r--drivers/hwmon/lm90.c83
1 files changed, 42 insertions, 41 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 77f8e3f7fd49..6882ce75feee 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -79,6 +79,7 @@
#include <linux/hwmon.h>
#include <linux/err.h>
#include <linux/mutex.h>
+#include <linux/sysfs.h>
/*
* Addresses to scan
@@ -366,6 +367,33 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
/* Raw alarm file for compatibility */
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 */
static ssize_t show_pec(struct device *dev, struct device_attribute *dummy,
char *buf)
@@ -589,54 +617,25 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
lm90_init_client(new_client);
/* 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);
if (IS_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;
+exit_remove_files:
+ sysfs_remove_group(&new_client->dev.kobj, &lm90_group);
+ device_remove_file(&new_client->dev, &dev_attr_pec);
exit_detach:
i2c_detach_client(new_client);
exit_free:
@@ -669,6 +668,8 @@ static int lm90_detach_client(struct i2c_client *client)
int err;
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)))
return err;