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WARNING: simple_strtol is obsolete, use kstrtol instead
WARNING: simple_strtoul is obsolete, use kstrtoul instead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>

1 files changed, 70 insertions, 33 deletions

diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c
index deac4b625305..a6310b89dedc 100644
--- a/drivers/hwmon/w83l786ng.c
+++ b/drivers/hwmon/w83l786ng.c
@@ -52,7 +52,7 @@ MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
 
 #define W83L786NG_REG_CONFIG            0x40
 #define W83L786NG_REG_ALARM1            0x41
-#define W83L786NG_REG_ALARM2            0x42
+#define W83L786NG_REG_ALARM2            0x42
 #define W83L786NG_REG_GPIO_EN           0x47
 #define W83L786NG_REG_MAN_ID2           0x4C
 #define W83L786NG_REG_MAN_ID1           0x4D
@@ -89,19 +89,21 @@ FAN_TO_REG(long rpm, int div)
         return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 }
 
-#define FAN_FROM_REG(val,div)   ((val) == 0   ? -1 : \
+#define FAN_FROM_REG(val, div)  ((val) == 0   ? -1 : \
                                 ((val) == 255 ? 0 : \
                                 1350000 / ((val) * (div))))
 
 /* for temp */
-#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_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)
 
 /* 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
    multiply/divide by 8 to translate from/to register values. */
-#define IN_TO_REG(val)          (SENSORS_LIMIT((((val) + 4) / 8), 0, 255))
+#define IN_TO_REG(val)          (SENSORS_LIMIT((((val) + 4) / 8), 0, 255))
 #define IN_FROM_REG(val)        ((val) * 8)
 
 #define DIV_FROM_REG(val)       (1 << (val))
@@ -186,11 +188,11 @@ w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value)
 #define show_in_reg(reg) \
 static ssize_t \
 show_##reg(struct device *dev, struct device_attribute *attr, \
-           char *buf) \
+           char *buf) \
 { \
         int nr = to_sensor_dev_attr(attr)->index; \
         struct w83l786ng_data *data = w83l786ng_update_device(dev); \
-        return sprintf(buf,"%d\n", IN_FROM_REG(data->reg[nr])); \
+        return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \
 }
 
 show_in_reg(in)
@@ -199,13 +201,16 @@ show_in_reg(in_max)
 
 #define store_in_reg(REG, reg) \
 static ssize_t \
-store_in_##reg (struct device *dev, struct device_attribute *attr, \
-                const char *buf, size_t count) \
+store_in_##reg(struct device *dev, struct device_attribute *attr, \
+               const char *buf, size_t count) \
 { \
         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), \
@@ -241,8 +246,8 @@ static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 { \
         int nr = to_sensor_dev_attr(attr)->index; \
         struct w83l786ng_data *data = w83l786ng_update_device(dev); \
-        return sprintf(buf,"%d\n", \
-                FAN_FROM_REG(data->fan[nr], DIV_FROM_REG(data->fan_div[nr]))); \
+        return sprintf(buf, "%d\n", \
+                FAN_FROM_REG(data->fan[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 }
 
 show_fan_reg(fan);
@@ -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:
@@ -371,16 +387,20 @@ 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],
                               data->temp[nr][index]);
         mutex_unlock(&data->update_lock);
 
-        return count;
+        return count;
 }
 
 static struct sensor_device_attribute_2 sda_temp_input[] = {
@@ -403,8 +423,8 @@ static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
 };
 
 #define show_pwm_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
-                           char *buf) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+                          char *buf) \
 { \
         struct w83l786ng_data *data = w83l786ng_update_device(dev); \
         int nr = to_sensor_dev_attr(attr)->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);