hwmon: Fix unchecked return status, SMSC chips
hwmon: Fix unchecked return status, SMSC chips
Fix up 2 more hwmon drivers so that they no longer ignore return
status from device_create_file().
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index 9cd28f2..47132fd 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -35,6 +35,7 @@
#include <linux/err.h>
#include <linux/init.h>
#include <linux/mutex.h>
+#include <linux/sysfs.h>
#include <asm/io.h>
/* Address is autodetected, there is no default value */
@@ -347,6 +348,30 @@
static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
+/* Almost all sysfs files may or may not be created depending on the chip
+ setup so we create them individually. It is still convenient to define a
+ group to remove them all at once. */
+static struct attribute *smsc47m1_attributes[] = {
+ &dev_attr_fan1_input.attr,
+ &dev_attr_fan1_min.attr,
+ &dev_attr_fan1_div.attr,
+ &dev_attr_fan2_input.attr,
+ &dev_attr_fan2_min.attr,
+ &dev_attr_fan2_div.attr,
+
+ &dev_attr_pwm1.attr,
+ &dev_attr_pwm1_enable.attr,
+ &dev_attr_pwm2.attr,
+ &dev_attr_pwm2_enable.attr,
+
+ &dev_attr_alarms.attr,
+ NULL
+};
+
+static const struct attribute_group smsc47m1_group = {
+ .attrs = smsc47m1_attributes,
+};
+
static int __init smsc47m1_find(unsigned short *addr)
{
u8 val;
@@ -447,46 +472,62 @@
smsc47m1_update_device(&new_client->dev, 1);
/* 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 error_detach;
- }
-
if (fan1) {
- device_create_file(&new_client->dev, &dev_attr_fan1_input);
- device_create_file(&new_client->dev, &dev_attr_fan1_min);
- device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ if ((err = device_create_file(&new_client->dev,
+ &dev_attr_fan1_input))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_fan1_min))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_fan1_div)))
+ goto error_remove_files;
} else
dev_dbg(&new_client->dev, "Fan 1 not enabled by hardware, "
"skipping\n");
if (fan2) {
- device_create_file(&new_client->dev, &dev_attr_fan2_input);
- device_create_file(&new_client->dev, &dev_attr_fan2_min);
- device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ if ((err = device_create_file(&new_client->dev,
+ &dev_attr_fan2_input))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_fan2_min))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_fan2_div)))
+ goto error_remove_files;
} else
dev_dbg(&new_client->dev, "Fan 2 not enabled by hardware, "
"skipping\n");
if (pwm1) {
- device_create_file(&new_client->dev, &dev_attr_pwm1);
- device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+ if ((err = device_create_file(&new_client->dev,
+ &dev_attr_pwm1))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_pwm1_enable)))
+ goto error_remove_files;
} else
dev_dbg(&new_client->dev, "PWM 1 not enabled by hardware, "
"skipping\n");
if (pwm2) {
- device_create_file(&new_client->dev, &dev_attr_pwm2);
- device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
+ if ((err = device_create_file(&new_client->dev,
+ &dev_attr_pwm2))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_pwm2_enable)))
+ goto error_remove_files;
} else
dev_dbg(&new_client->dev, "PWM 2 not enabled by hardware, "
"skipping\n");
- device_create_file(&new_client->dev, &dev_attr_alarms);
+ if ((err = device_create_file(&new_client->dev, &dev_attr_alarms)))
+ goto error_remove_files;
+
+ data->class_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto error_remove_files;
+ }
return 0;
-error_detach:
+error_remove_files:
+ sysfs_remove_group(&new_client->dev.kobj, &smsc47m1_group);
i2c_detach_client(new_client);
error_free:
kfree(data);
@@ -501,6 +542,7 @@
int err;
hwmon_device_unregister(data->class_dev);
+ sysfs_remove_group(&client->dev.kobj, &smsc47m1_group);
if ((err = i2c_detach_client(client)))
return err;
diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c
index bdc4570..a6833f43 100644
--- a/drivers/hwmon/smsc47m192.c
+++ b/drivers/hwmon/smsc47m192.c
@@ -30,6 +30,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/hwmon-vid.h>
#include <linux/err.h>
+#include <linux/sysfs.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
@@ -370,6 +371,75 @@
static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 0x0400);
static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 0x0800);
+static struct attribute *smsc47m192_attributes[] = {
+ &sensor_dev_attr_in0_input.dev_attr.attr,
+ &sensor_dev_attr_in0_min.dev_attr.attr,
+ &sensor_dev_attr_in0_max.dev_attr.attr,
+ &sensor_dev_attr_in0_alarm.dev_attr.attr,
+ &sensor_dev_attr_in1_input.dev_attr.attr,
+ &sensor_dev_attr_in1_min.dev_attr.attr,
+ &sensor_dev_attr_in1_max.dev_attr.attr,
+ &sensor_dev_attr_in1_alarm.dev_attr.attr,
+ &sensor_dev_attr_in2_input.dev_attr.attr,
+ &sensor_dev_attr_in2_min.dev_attr.attr,
+ &sensor_dev_attr_in2_max.dev_attr.attr,
+ &sensor_dev_attr_in2_alarm.dev_attr.attr,
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in3_min.dev_attr.attr,
+ &sensor_dev_attr_in3_max.dev_attr.attr,
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in5_min.dev_attr.attr,
+ &sensor_dev_attr_in5_max.dev_attr.attr,
+ &sensor_dev_attr_in5_alarm.dev_attr.attr,
+ &sensor_dev_attr_in6_input.dev_attr.attr,
+ &sensor_dev_attr_in6_min.dev_attr.attr,
+ &sensor_dev_attr_in6_max.dev_attr.attr,
+ &sensor_dev_attr_in6_alarm.dev_attr.attr,
+ &sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in7_min.dev_attr.attr,
+ &sensor_dev_attr_in7_max.dev_attr.attr,
+ &sensor_dev_attr_in7_alarm.dev_attr.attr,
+
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_offset.dev_attr.attr,
+ &sensor_dev_attr_temp1_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_offset.dev_attr.attr,
+ &sensor_dev_attr_temp2_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_input_fault.dev_attr.attr,
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_max.dev_attr.attr,
+ &sensor_dev_attr_temp3_min.dev_attr.attr,
+ &sensor_dev_attr_temp3_offset.dev_attr.attr,
+ &sensor_dev_attr_temp3_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_input_fault.dev_attr.attr,
+
+ &dev_attr_cpu0_vid.attr,
+ &dev_attr_vrm.attr,
+ NULL
+};
+
+static const struct attribute_group smsc47m192_group = {
+ .attrs = smsc47m192_attributes,
+};
+
+static struct attribute *smsc47m192_attributes_in4[] = {
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
+ &sensor_dev_attr_in4_alarm.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group smsc47m192_group_in4 = {
+ .attrs = smsc47m192_attributes_in4,
+};
+
/* This function is called when:
* smsc47m192_driver is inserted (when this module is loaded), for each
available adapter
@@ -471,80 +541,28 @@
smsc47m192_init_client(client);
/* Register sysfs hooks */
- data->class_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->class_dev)) {
- err = PTR_ERR(data->class_dev);
+ if ((err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group)))
goto exit_detach;
- }
-
- device_create_file(&client->dev, &sensor_dev_attr_in0_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in0_min.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in0_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in0_alarm.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in1_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in1_min.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in1_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in1_alarm.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in2_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in2_min.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in2_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in2_alarm.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in3_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in3_min.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in3_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in3_alarm.dev_attr);
/* Pin 110 is either in4 (+12V) or VID4 */
config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
if (!(config & 0x20)) {
- device_create_file(&client->dev,
- &sensor_dev_attr_in4_input.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_in4_min.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_in4_max.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_in4_alarm.dev_attr);
+ if ((err = sysfs_create_group(&client->dev.kobj,
+ &smsc47m192_group_in4)))
+ goto exit_remove_files;
}
- device_create_file(&client->dev, &sensor_dev_attr_in5_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in5_min.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in5_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in5_alarm.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in6_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in6_min.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in6_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in6_alarm.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in7_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in7_min.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in7_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_in7_alarm.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp1_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp1_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp1_min.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_temp1_offset.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp1_alarm.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp2_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp2_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp2_min.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_temp2_offset.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp2_alarm.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_temp2_input_fault.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp3_input.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp3_max.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp3_min.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_temp3_offset.dev_attr);
- device_create_file(&client->dev, &sensor_dev_attr_temp3_alarm.dev_attr);
- device_create_file(&client->dev,
- &sensor_dev_attr_temp3_input_fault.dev_attr);
- device_create_file(&client->dev, &dev_attr_cpu0_vid);
- device_create_file(&client->dev, &dev_attr_vrm);
+
+ data->class_dev = hwmon_device_register(&client->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto exit_remove_files;
+ }
return 0;
+exit_remove_files:
+ sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
+ sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
exit_detach:
i2c_detach_client(client);
exit_free:
@@ -559,6 +577,8 @@
int err;
hwmon_device_unregister(data->class_dev);
+ sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
+ sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
if ((err = i2c_detach_client(client)))
return err;
