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

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>

1 files changed, 80 insertions, 45 deletions

diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index f44a89aac381..aba11e56e8e7 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -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
@@ -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;
@@ -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);
@@ -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);
@@ -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);