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hwmon: (smsc47m1) Fix: do not use assignment in if condition
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Fix checkpatch issue:
ERROR: do not use assignment in if condition

Replace repeated calls to device_create_file() with calls to sysfs_create_group.

Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Guenter Roeck authored and Guenter Roeck committed Mar 19, 2012
1 parent 7cc3cb6 commit 7e61268
Showing 1 changed file with 80 additions and 45 deletions.
125 changes: 80 additions & 45 deletions drivers/hwmon/smsc47m1.c
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Original file line number Diff line number Diff line change
Expand Up @@ -380,30 +380,73 @@ static ssize_t show_name(struct device *dev, struct device_attribute
}
static DEVICE_ATTR(name, S_IRUGO, show_name, 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[] = {
static struct attribute *smsc47m1_attributes_fan1[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
&sensor_dev_attr_fan1_div.dev_attr.attr,
&sensor_dev_attr_fan1_alarm.dev_attr.attr,
NULL
};

static const struct attribute_group smsc47m1_group_fan1 = {
.attrs = smsc47m1_attributes_fan1,
};

static struct attribute *smsc47m1_attributes_fan2[] = {
&sensor_dev_attr_fan2_input.dev_attr.attr,
&sensor_dev_attr_fan2_min.dev_attr.attr,
&sensor_dev_attr_fan2_div.dev_attr.attr,
&sensor_dev_attr_fan2_alarm.dev_attr.attr,
NULL
};

static const struct attribute_group smsc47m1_group_fan2 = {
.attrs = smsc47m1_attributes_fan2,
};

static struct attribute *smsc47m1_attributes_fan3[] = {
&sensor_dev_attr_fan3_input.dev_attr.attr,
&sensor_dev_attr_fan3_min.dev_attr.attr,
&sensor_dev_attr_fan3_div.dev_attr.attr,
&sensor_dev_attr_fan3_alarm.dev_attr.attr,
NULL
};

static const struct attribute_group smsc47m1_group_fan3 = {
.attrs = smsc47m1_attributes_fan3,
};

static struct attribute *smsc47m1_attributes_pwm1[] = {
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
NULL
};

static const struct attribute_group smsc47m1_group_pwm1 = {
.attrs = smsc47m1_attributes_pwm1,
};

static struct attribute *smsc47m1_attributes_pwm2[] = {
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
NULL
};

static const struct attribute_group smsc47m1_group_pwm2 = {
.attrs = smsc47m1_attributes_pwm2,
};

static struct attribute *smsc47m1_attributes_pwm3[] = {
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
NULL
};

static const struct attribute_group smsc47m1_group_pwm3 = {
.attrs = smsc47m1_attributes_pwm3,
};

static struct attribute *smsc47m1_attributes[] = {
&dev_attr_alarms.attr,
&dev_attr_name.attr,
NULL
Expand Down Expand Up @@ -583,6 +626,17 @@ static int smsc47m1_handle_resources(unsigned short address, enum chips type,
return 0;
}

static void smsc47m1_remove_files(struct device *dev)
{
sysfs_remove_group(&dev->kobj, &smsc47m1_group);
sysfs_remove_group(&dev->kobj, &smsc47m1_group_fan1);
sysfs_remove_group(&dev->kobj, &smsc47m1_group_fan2);
sysfs_remove_group(&dev->kobj, &smsc47m1_group_fan3);
sysfs_remove_group(&dev->kobj, &smsc47m1_group_pwm1);
sysfs_remove_group(&dev->kobj, &smsc47m1_group_pwm2);
sysfs_remove_group(&dev->kobj, &smsc47m1_group_pwm3);
}

static int __init smsc47m1_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
Expand Down Expand Up @@ -653,74 +707,55 @@ static int __init smsc47m1_probe(struct platform_device *pdev)

/* Register sysfs hooks */
if (fan1) {
if ((err = device_create_file(dev,
&sensor_dev_attr_fan1_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan1_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan1_div.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan1_alarm.dev_attr)))
err = sysfs_create_group(&dev->kobj,
&smsc47m1_group_fan1);
if (err)
goto error_remove_files;
} else
dev_dbg(dev, "Fan 1 not enabled by hardware, skipping\n");

if (fan2) {
if ((err = device_create_file(dev,
&sensor_dev_attr_fan2_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan2_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan2_div.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan2_alarm.dev_attr)))
err = sysfs_create_group(&dev->kobj,
&smsc47m1_group_fan2);
if (err)
goto error_remove_files;
} else
dev_dbg(dev, "Fan 2 not enabled by hardware, skipping\n");

if (fan3) {
if ((err = device_create_file(dev,
&sensor_dev_attr_fan3_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_div.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_alarm.dev_attr)))
err = sysfs_create_group(&dev->kobj,
&smsc47m1_group_fan3);
if (err)
goto error_remove_files;
} else if (data->type == smsc47m2)
dev_dbg(dev, "Fan 3 not enabled by hardware, skipping\n");

if (pwm1) {
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm1.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm1_enable.dev_attr)))
err = sysfs_create_group(&dev->kobj,
&smsc47m1_group_pwm1);
if (err)
goto error_remove_files;
} else
dev_dbg(dev, "PWM 1 not enabled by hardware, skipping\n");

if (pwm2) {
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm2.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm2_enable.dev_attr)))
err = sysfs_create_group(&dev->kobj,
&smsc47m1_group_pwm2);
if (err)
goto error_remove_files;
} else
dev_dbg(dev, "PWM 2 not enabled by hardware, skipping\n");

if (pwm3) {
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm3.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm3_enable.dev_attr)))
err = sysfs_create_group(&dev->kobj,
&smsc47m1_group_pwm3);
if (err)
goto error_remove_files;
} else if (data->type == smsc47m2)
dev_dbg(dev, "PWM 3 not enabled by hardware, skipping\n");

if ((err = device_create_file(dev, &dev_attr_alarms)))
goto error_remove_files;
if ((err = device_create_file(dev, &dev_attr_name)))
err = sysfs_create_group(&dev->kobj, &smsc47m1_group);
if (err)
goto error_remove_files;

data->hwmon_dev = hwmon_device_register(dev);
Expand All @@ -732,7 +767,7 @@ static int __init smsc47m1_probe(struct platform_device *pdev)
return 0;

error_remove_files:
sysfs_remove_group(&dev->kobj, &smsc47m1_group);
smsc47m1_remove_files(dev);
error_free:
platform_set_drvdata(pdev, NULL);
kfree(data);
Expand All @@ -747,7 +782,7 @@ static int __exit smsc47m1_remove(struct platform_device *pdev)
struct resource *res;

hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&pdev->dev.kobj, &smsc47m1_group);
smsc47m1_remove_files(&pdev->dev);

res = platform_get_resource(pdev, IORESOURCE_IO, 0);
smsc47m1_handle_resources(res->start, data->type, RELEASE, &pdev->dev);
Expand Down

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