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authorGuenter Roeck <linux@roeck-us.net>2012-03-25 08:54:41 +0400
committerGuenter Roeck <guenter.roeck@ericsson.com>2012-05-22 17:48:48 +0400
commit62a1d05f0ecf9c6a376bbe310718ed76582496a2 (patch)
treefc2d5c04a7ba8c96eb55f34f3bc88be90bb7d8d7 /drivers/hwmon
parentf7c2fe386ae92b471a0edd4fa4bed7033224b9bf (diff)
downloadlinux-62a1d05f0ecf9c6a376bbe310718ed76582496a2.tar.xz
hwmon: (it87) Convert to use devm_kzalloc and devm_request_region
This makes the code a bit simpler and smaller. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/it87.c54
1 files changed, 20 insertions, 34 deletions
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index bef8732f08b1..071dd60f1c82 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -1965,19 +1965,17 @@ static int __devinit it87_probe(struct platform_device *pdev)
};
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {
+ if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT,
+ DRVNAME)) {
dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
(unsigned long)res->start,
(unsigned long)(res->start + IT87_EC_EXTENT - 1));
- err = -EBUSY;
- goto ERROR0;
+ return -EBUSY;
}
- data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto ERROR1;
- }
+ data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
data->addr = res->start;
data->type = sio_data->type;
@@ -1986,10 +1984,8 @@ static int __devinit it87_probe(struct platform_device *pdev)
/* Now, we do the remaining detection. */
if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
- || it87_read_value(data, IT87_REG_CHIPID) != 0x90) {
- err = -ENODEV;
- goto ERROR2;
- }
+ || it87_read_value(data, IT87_REG_CHIPID) != 0x90)
+ return -ENODEV;
platform_set_drvdata(pdev, data);
@@ -2019,26 +2015,26 @@ static int __devinit it87_probe(struct platform_device *pdev)
/* Register sysfs hooks */
err = sysfs_create_group(&dev->kobj, &it87_group);
if (err)
- goto ERROR2;
+ return err;
for (i = 0; i < 9; i++) {
if (sio_data->skip_in & (1 << i))
continue;
err = sysfs_create_group(&dev->kobj, &it87_group_in[i]);
if (err)
- goto ERROR4;
+ goto error;
if (sio_data->beep_pin && it87_attributes_in_beep[i]) {
err = sysfs_create_file(&dev->kobj,
it87_attributes_in_beep[i]);
if (err)
- goto ERROR4;
+ goto error;
}
}
if (sio_data->beep_pin) {
err = sysfs_create_group(&dev->kobj, &it87_group_beep);
if (err)
- goto ERROR4;
+ goto error;
}
/* Do not create fan files for disabled fans */
@@ -2049,13 +2045,13 @@ static int __devinit it87_probe(struct platform_device *pdev)
continue;
err = sysfs_create_group(&dev->kobj, &fan_group[i]);
if (err)
- goto ERROR4;
+ goto error;
if (sio_data->beep_pin) {
err = sysfs_create_file(&dev->kobj,
it87_attributes_fan_beep[i]);
if (err)
- goto ERROR4;
+ goto error;
if (!fan_beep_need_rw)
continue;
@@ -2080,14 +2076,14 @@ static int __devinit it87_probe(struct platform_device *pdev)
err = sysfs_create_group(&dev->kobj,
&it87_group_pwm[i]);
if (err)
- goto ERROR4;
+ goto error;
if (!has_old_autopwm(data))
continue;
err = sysfs_create_group(&dev->kobj,
&it87_group_autopwm[i]);
if (err)
- goto ERROR4;
+ goto error;
}
}
@@ -2097,7 +2093,7 @@ static int __devinit it87_probe(struct platform_device *pdev)
data->vid = sio_data->vid_value;
err = sysfs_create_group(&dev->kobj, &it87_group_vid);
if (err)
- goto ERROR4;
+ goto error;
}
/* Export labels for internal sensors */
@@ -2107,25 +2103,19 @@ static int __devinit it87_probe(struct platform_device *pdev)
err = sysfs_create_file(&dev->kobj,
it87_attributes_label[i]);
if (err)
- goto ERROR4;
+ goto error;
}
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
- goto ERROR4;
+ goto error;
}
return 0;
-ERROR4:
+error:
it87_remove_files(dev);
-ERROR2:
- platform_set_drvdata(pdev, NULL);
- kfree(data);
-ERROR1:
- release_region(res->start, IT87_EC_EXTENT);
-ERROR0:
return err;
}
@@ -2136,10 +2126,6 @@ static int __devexit it87_remove(struct platform_device *pdev)
hwmon_device_unregister(data->hwmon_dev);
it87_remove_files(&pdev->dev);
- release_region(data->addr, IT87_EC_EXTENT);
- platform_set_drvdata(pdev, NULL);
- kfree(data);
-
return 0;
}