hwmon: (w83l786ng) Fix checkpatch issues

Fixed:
ERROR: code indent should use tabs where possible
ERROR: do not use assignment in if condition
ERROR: space required after that ',' (ctx:VxV)
WARNING: braces {} are not necessary for single statement blocks
WARNING: please, no space before tabs
WARNING: please, no spaces at the start of a line
WARNING: simple_strtol is obsolete, use kstrtol instead
WARNING: simple_strtoul is obsolete, use kstrtoul instead
WARNING: space prohibited between function name and open parenthesis '('

Not fixed (false positive):
ERROR: Macros with complex values should be enclosed in parenthesis

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/w83l786ng.c

@@ -94,9 +94,11 @@ FAN_TO_REG(long rpm, int div)
 				1350000 / ((val) * (div))))
 
 /* for temp */
-#define TEMP_TO_REG(val)	(SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
+#define TEMP_TO_REG(val)	(SENSORS_LIMIT(((val) < 0 ? \
+						(val) + 0x100 * 1000 \
 						: (val)) / 1000, 0, 0xff))
-#define TEMP_FROM_REG(val)	(((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
+#define TEMP_FROM_REG(val)	(((val) & 0x80 ? \
+				  (val) - 0x100 : (val)) * 1000)
 
 /* The analog voltage inputs have 8mV LSB. Since the sysfs output is
    in mV as would be measured on the chip input pin, need to just
@@ -205,7 +207,10 @@ store_in_##reg (struct device *dev, struct device_attribute *attr, \
 	int nr = to_sensor_dev_attr(attr)->index; \
 	struct i2c_client *client = to_i2c_client(dev); \
 	struct w83l786ng_data *data = i2c_get_clientdata(client); \
-	unsigned long val = simple_strtoul(buf, NULL, 10); \
+	unsigned long val; \
+	int err = kstrtoul(buf, 10, &val); \
+	if (err) \
+		return err; \
 	mutex_lock(&data->update_lock); \
 	data->in_##reg[nr] = IN_TO_REG(val); \
 	w83l786ng_write_value(client, W83L786NG_REG_IN_##REG(nr), \
@@ -255,9 +260,13 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
 	int nr = to_sensor_dev_attr(attr)->index;
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83l786ng_data *data = i2c_get_clientdata(client);
-	u32 val;
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
 
-	val = simple_strtoul(buf, NULL, 10);
 	mutex_lock(&data->update_lock);
 	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 	w83l786ng_write_value(client, W83L786NG_REG_FAN_MIN(nr),
@@ -294,11 +303,18 @@ store_fan_div(struct device *dev, struct device_attribute *attr,
 	u8 keep_mask = 0;
 	u8 new_shift = 0;
 
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
 	/* Save fan_min */
 	mutex_lock(&data->update_lock);
 	min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
 
-	data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
+	data->fan_div[nr] = DIV_TO_REG(val);
 
 	switch (nr) {
 	case 0:
@@ -371,9 +387,13 @@ store_temp(struct device *dev, struct device_attribute *attr,
 	int index = sensor_attr->index;
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83l786ng_data *data = i2c_get_clientdata(client);
-	s32 val;
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return err;
 
-	val = simple_strtol(buf, NULL, 10);
 	mutex_lock(&data->update_lock);
 	data->temp[nr][index] = TEMP_TO_REG(val);
 	w83l786ng_write_value(client, W83L786NG_REG_TEMP[nr][index],
@@ -422,8 +442,13 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
 	int nr = to_sensor_dev_attr(attr)->index;
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83l786ng_data *data = i2c_get_clientdata(client);
-	u32 val = simple_strtoul(buf, NULL, 10);
 	u8 reg;
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
 
 	if (val > 1)
 		return -EINVAL;
@@ -445,7 +470,13 @@ store_pwm(struct device *dev, struct device_attribute *attr,
 	int nr = to_sensor_dev_attr(attr)->index;
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83l786ng_data *data = i2c_get_clientdata(client);
-	u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+	val = SENSORS_LIMIT(val, 0, 255);
 
 	mutex_lock(&data->update_lock);
 	data->pwm[nr] = val;
@@ -461,11 +492,15 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
 	int nr = to_sensor_dev_attr(attr)->index;
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83l786ng_data *data = i2c_get_clientdata(client);
-	u32 val = simple_strtoul(buf, NULL, 10);
-
 	u8 reg;
+	unsigned long val;
+	int err;
 
-	if (!val || (val > 2))  /* only modes 1 and 2 are supported */
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	if (!val || val > 2)  /* only modes 1 and 2 are supported */
 		return -EINVAL;
 
 	mutex_lock(&data->update_lock);
@@ -513,10 +548,13 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
 	int nr = to_sensor_dev_attr(attr)->index;
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83l786ng_data *data = i2c_get_clientdata(client);
-	u32 val;
 	u8 tol_tmp, tol_mask;
+	unsigned long val;
+	int err;
 
-	val = simple_strtoul(buf, NULL, 10);
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
 
 	mutex_lock(&data->update_lock);
 	tol_mask = w83l786ng_read_value(client,
@@ -524,9 +562,8 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
 	tol_tmp = SENSORS_LIMIT(val, 0, 15);
 	tol_tmp &= 0x0f;
 	data->tolerance[nr] = tol_tmp;
-	if (nr == 1) {
+	if (nr == 1)
 		tol_tmp <<= 4;
-	}
 
 	w83l786ng_write_value(client, W83L786NG_REG_TOLERANCE,
 			      tol_mask | tol_tmp);
@@ -591,9 +628,8 @@ w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info)
 	u16 man_id;
 	u8 chip_id;
 
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
-	}
 
 	/* Detection */
 	if ((w83l786ng_read_value(client, W83L786NG_REG_CONFIG) & 0x80)) {
@@ -652,7 +688,8 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	data->fan_div[1] = (reg_tmp >> 4) & 0x07;
 
 	/* Register sysfs hooks */
-	if ((err = sysfs_create_group(&client->dev.kobj, &w83l786ng_group)))
+	err = sysfs_create_group(&client->dev.kobj, &w83l786ng_group);
+	if (err)
 		goto exit_remove;
 
 	data->hwmon_dev = hwmon_device_register(dev);