diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/lm90.c | 76 |
1 files changed, 51 insertions, 25 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 760ef72eea56..aafed2898d95 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -387,8 +387,13 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct i2c_client *client = to_i2c_client(dev); struct lm90_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); int nr = attr->index; + long val; + int err; + + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; /* +16 degrees offset for temp2 for the LM99 */ if (data->kind == lm99 && attr->index == 3) @@ -442,8 +447,13 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct i2c_client *client = to_i2c_client(dev); struct lm90_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); int nr = attr->index; + long val; + int err; + + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; /* +16 degrees offset for temp2 for the LM99 */ if (data->kind == lm99 && attr->index <= 2) @@ -469,7 +479,8 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, return count; } -static ssize_t show_temphyst(struct device *dev, struct device_attribute *devattr, +static ssize_t show_temphyst(struct device *dev, + struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); @@ -495,9 +506,14 @@ static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy, { struct i2c_client *client = to_i2c_client(dev); struct lm90_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; int temp; + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; + mutex_lock(&data->update_lock); if (data->kind == adt7461) temp = temp_from_u8_adt7461(data, data->temp8[2]); @@ -600,7 +616,12 @@ static ssize_t set_pec(struct device *dev, struct device_attribute *dummy, const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; + + err = strict_strtol(buf, 10, &val); + if (err < 0) + return err; switch (val) { case 0: @@ -622,8 +643,10 @@ static DEVICE_ATTR(pec, S_IWUSR | S_IRUGO, show_pec, set_pec); * Real code */ -/* The ADM1032 supports PEC but not on write byte transactions, so we need - to explicitly ask for a transaction without PEC. */ +/* + * The ADM1032 supports PEC but not on write byte transactions, so we need + * to explicitly ask for a transaction without PEC. + */ static inline s32 adm1032_write_byte(struct i2c_client *client, u8 value) { return i2c_smbus_xfer(client->adapter, client->addr, @@ -631,20 +654,22 @@ static inline s32 adm1032_write_byte(struct i2c_client *client, u8 value) I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL); } -/* It is assumed that client->update_lock is held (unless we are in - detection or initialization steps). This matters when PEC is enabled, - because we don't want the address pointer to change between the write - byte and the read byte transactions. */ -static int lm90_read_reg(struct i2c_client* client, u8 reg, u8 *value) +/* + * It is assumed that client->update_lock is held (unless we are in + * detection or initialization steps). This matters when PEC is enabled, + * because we don't want the address pointer to change between the write + * byte and the read byte transactions. + */ +static int lm90_read_reg(struct i2c_client *client, u8 reg, u8 *value) { int err; - if (client->flags & I2C_CLIENT_PEC) { - err = adm1032_write_byte(client, reg); - if (err >= 0) - err = i2c_smbus_read_byte(client); - } else - err = i2c_smbus_read_byte_data(client, reg); + if (client->flags & I2C_CLIENT_PEC) { + err = adm1032_write_byte(client, reg); + if (err >= 0) + err = i2c_smbus_read_byte(client); + } else + err = i2c_smbus_read_byte_data(client, reg); if (err < 0) { dev_warn(&client->dev, "Register %#02x read failed (%d)\n", @@ -826,16 +851,18 @@ static int lm90_probe(struct i2c_client *new_client, lm90_init_client(new_client); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&new_client->dev.kobj, &lm90_group))) + err = sysfs_create_group(&new_client->dev.kobj, &lm90_group); + if (err) goto exit_free; if (new_client->flags & I2C_CLIENT_PEC) { - if ((err = device_create_file(&new_client->dev, - &dev_attr_pec))) + err = device_create_file(&new_client->dev, &dev_attr_pec); + if (err) goto exit_remove_files; } if (data->kind != max6657 && data->kind != max6646) { - if ((err = device_create_file(&new_client->dev, - &sensor_dev_attr_temp2_offset.dev_attr))) + err = device_create_file(&new_client->dev, + &sensor_dev_attr_temp2_offset.dev_attr); + if (err) goto exit_remove_files; } @@ -883,9 +910,8 @@ static void lm90_init_client(struct i2c_client *client) * 0.125 degree resolution) and range (0x08, extend range * to -64 degree) mode for the remote temperature sensor. */ - if (data->kind == max6680) { + if (data->kind == max6680) config |= 0x18; - } config &= 0xBF; /* run */ if (config != data->config_orig) /* Only write if changed */ |