Use devm_kzalloc and devm_hwmon_device_register_with_groups() to
simplify the code a bit.
Signed-off-by: Jean Delvare <jdelvare@xxxxxxx>
Cc: Romain Dolbeau <romain@xxxxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/i5500_temp.c | 69 +++++++++++++--------------------------------
1 file changed, 20 insertions(+), 49 deletions(-)
--- linux-3.17.orig/drivers/hwmon/i5500_temp.c 2014-10-19 22:06:08.460835707 +0200
+++ linux-3.17/drivers/hwmon/i5500_temp.c 2014-10-19 22:43:55.647695623 +0200
@@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
+#include <linux/device.h>
#include <linux/pci.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
@@ -38,9 +39,8 @@
#define REG_TSTIMER 0xF8
struct i5500_temp_data {
- struct device *hwmon_dev;
+ struct pci_dev *pdev;
struct mutex update_lock;
- const char *name;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
@@ -56,7 +56,7 @@ static struct i5500_temp_data *
i5500_temp_update_device(struct device *dev)
{
struct i5500_temp_data *data = dev_get_drvdata(dev);
- struct pci_dev *pdev = to_pci_dev(dev);
+ struct pci_dev *pdev = data->pdev;
mutex_lock(&data->update_lock);
@@ -113,21 +113,12 @@ static ssize_t show_alarm(struct device
return sprintf(buf, "%u\n", (unsigned int)data->ctsts & (1 << nr));
}
-static ssize_t show_name(struct device *dev, struct device_attribute
- *devattr, char *buf)
-{
- struct i5500_temp_data *data = dev_get_drvdata(dev);
-
- return sprintf(buf, "%s\n", data->name);
-}
-
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_thresh, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_thresh, NULL, 1);
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_thresh, NULL, 2);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static struct attribute *i5500_temp_attributes[] = {
&dev_attr_temp1_input.attr,
@@ -136,7 +127,6 @@ static struct attribute *i5500_temp_attr
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
- &dev_attr_name.attr,
NULL
};
@@ -144,6 +134,11 @@ static const struct attribute_group i550
.attrs = i5500_temp_attributes,
};
+static const struct attribute_group *i5500_temp_groups[] = {
+ &i5500_temp_group,
+ NULL
+};
+
static const struct pci_device_id i5500_temp_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3438) },
{ 0 },
@@ -156,58 +151,34 @@ static int i5500_temp_probe(struct pci_d
{
int err;
struct i5500_temp_data *data;
+ struct device *hwmon_dev;
- data = kzalloc(sizeof(struct i5500_temp_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto exit;
- }
+ data = devm_kzalloc(&pdev->dev, sizeof(struct i5500_temp_data),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- data->name = "intel5500";
mutex_init(&data->update_lock);
- dev_set_drvdata(&pdev->dev, data);
+ data->pdev = pdev;
err = pci_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "Failed to enable device\n");
- goto exit_free;
- }
-
- /* Register sysfs hooks */
- err = sysfs_create_group(&pdev->dev.kobj, &i5500_temp_group);
- if (err)
- goto exit_free;
-
- data->hwmon_dev = hwmon_device_register(&pdev->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove;
+ return err;
}
- return 0;
-
- exit_remove:
- sysfs_remove_group(&pdev->dev.kobj, &i5500_temp_group);
- exit_free:
- kfree(data);
- exit:
- return err;
-}
-
-static void i5500_temp_remove(struct pci_dev *pdev)
-{
- struct i5500_temp_data *data = dev_get_drvdata(&pdev->dev);
+ hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
+ "intel5500",
+ data,
+ i5500_temp_groups);
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&pdev->dev.kobj, &i5500_temp_group);
- kfree(data);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
}
static struct pci_driver i5500_temp_driver = {
.name = "i5500_temp",
.id_table = i5500_temp_ids,
.probe = i5500_temp_probe,
- .remove = i5500_temp_remove,
};
static int __init i5500_temp_init(void)
--
Jean Delvare
SUSE L3 Support
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