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authorGuenter Roeck <linux@roeck-us.net>2012-06-02 11:48:00 -0700
committerGuenter Roeck <linux@roeck-us.net>2012-07-21 21:48:43 -0700
commit144d2b9985d363bd330788356b4ee8ffbf6b0363 (patch)
treeb5f45febd5165acdc6c1449b548821a25747f3d1 /drivers/hwmon/w83781d.c
parent0cf46997218344e6223a7874ff9433b09c12dd60 (diff)
hwmon: (w83781d) Convert to use devm_ functions
Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon/w83781d.c')
-rw-r--r--drivers/hwmon/w83781d.c46
1 files changed, 16 insertions, 30 deletions
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index b03d54a799e..c11452ebe18 100644
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -1213,11 +1213,9 @@ w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
struct w83781d_data *data;
int err;
- data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto ERROR1;
- }
+ data = devm_kzalloc(dev, sizeof(struct w83781d_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
i2c_set_clientdata(client, data);
mutex_init(&data->lock);
@@ -1229,7 +1227,7 @@ w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* attach secondary i2c lm75-like clients */
err = w83781d_detect_subclients(client);
if (err)
- goto ERROR3;
+ return err;
/* Initialize the chip */
w83781d_init_device(dev);
@@ -1237,25 +1235,22 @@ w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* Register sysfs hooks */
err = w83781d_create_files(dev, data->type, 0);
if (err)
- goto ERROR4;
+ goto exit_remove_files;
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
- goto ERROR4;
+ goto exit_remove_files;
}
return 0;
-ERROR4:
+ exit_remove_files:
w83781d_remove_files(dev);
if (data->lm75[0])
i2c_unregister_device(data->lm75[0]);
if (data->lm75[1])
i2c_unregister_device(data->lm75[1]);
-ERROR3:
- kfree(data);
-ERROR1:
return err;
}
@@ -1273,8 +1268,6 @@ w83781d_remove(struct i2c_client *client)
if (data->lm75[1])
i2c_unregister_device(data->lm75[1]);
- kfree(data);
-
return 0;
}
@@ -1780,17 +1773,16 @@ w83781d_isa_probe(struct platform_device *pdev)
/* Reserve the ISA region */
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (!request_region(res->start + W83781D_ADDR_REG_OFFSET, 2,
- "w83781d")) {
- err = -EBUSY;
- goto exit;
- }
+ if (!devm_request_region(&pdev->dev,
+ res->start + W83781D_ADDR_REG_OFFSET, 2,
+ "w83781d"))
+ return -EBUSY;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(struct w83781d_data),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto exit_release_region;
- }
mutex_init(&data->lock);
data->isa_addr = res->start;
platform_set_drvdata(pdev, data);
@@ -1829,10 +1821,6 @@ w83781d_isa_probe(struct platform_device *pdev)
exit_remove_files:
w83781d_remove_files(&pdev->dev);
device_remove_file(&pdev->dev, &dev_attr_name);
- kfree(data);
- exit_release_region:
- release_region(res->start + W83781D_ADDR_REG_OFFSET, 2);
- exit:
return err;
}
@@ -1844,8 +1832,6 @@ w83781d_isa_remove(struct platform_device *pdev)
hwmon_device_unregister(data->hwmon_dev);
w83781d_remove_files(&pdev->dev);
device_remove_file(&pdev->dev, &dev_attr_name);
- release_region(data->isa_addr + W83781D_ADDR_REG_OFFSET, 2);
- kfree(data);
return 0;
}