diff options
Diffstat (limited to 'drivers/hwmon/lm63.c')
| -rw-r--r-- | drivers/hwmon/lm63.c | 74 |
1 files changed, 53 insertions, 21 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 508cb291f71b..e02d7f01b01b 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -204,7 +204,12 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *dummy, { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - unsigned long val = simple_strtoul(buf, NULL, 10); + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err) + return err; mutex_lock(&data->update_lock); data->fan[1] = FAN_TO_REG(val); @@ -231,11 +236,15 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); unsigned long val; - + int err; + if (!(data->config_fan & 0x20)) /* register is read-only */ return -EPERM; - val = simple_strtoul(buf, NULL, 10); + err = kstrtoul(buf, 10, &val); + if (err) + return err; + mutex_lock(&data->update_lock); data->pwm1_value = val <= 0 ? 0 : val >= 255 ? 2 * data->pwm1_freq : @@ -245,8 +254,8 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, return count; } -static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *dummy, - char *buf) +static ssize_t show_pwm1_enable(struct device *dev, + struct device_attribute *dummy, char *buf) { struct lm63_data *data = lm63_update_device(dev); return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2); @@ -283,7 +292,12 @@ static ssize_t set_local_temp8(struct device *dev, { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; + + err = kstrtol(buf, 10, &val); + if (err) + return err; mutex_lock(&data->update_lock); data->temp8[1] = TEMP8_TO_REG(val); @@ -314,9 +328,14 @@ 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 lm63_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; int nr = attr->index; + err = kstrtol(buf, 10, &val); + if (err) + return err; + mutex_lock(&data->update_lock); data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset); i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2], @@ -327,10 +346,12 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, return count; } -/* Hysteresis register holds a relative value, while we want to present - an absolute to user-space */ -static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy, - char *buf) +/* + * Hysteresis register holds a relative value, while we want to present + * an absolute to user-space + */ +static ssize_t show_temp2_crit_hyst(struct device *dev, + struct device_attribute *dummy, char *buf) { struct lm63_data *data = lm63_update_device(dev); return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[2]) @@ -338,16 +359,24 @@ static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute - TEMP8_FROM_REG(data->temp2_crit_hyst)); } -/* And now the other way around, user-space provides an absolute - hysteresis value and we have to store a relative one */ -static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy, +/* + * And now the other way around, user-space provides an absolute + * hysteresis value and we have to store a relative one + */ +static ssize_t set_temp2_crit_hyst(struct device *dev, + struct device_attribute *dummy, const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; long hyst; + err = kstrtol(buf, 10, &val); + if (err) + return err; + mutex_lock(&data->update_lock); hyst = TEMP8_FROM_REG(data->temp8[2]) + data->temp2_offset - val; i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST, @@ -518,12 +547,13 @@ static int lm63_probe(struct i2c_client *new_client, lm63_init_client(new_client); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&new_client->dev.kobj, - &lm63_group))) + err = sysfs_create_group(&new_client->dev.kobj, &lm63_group); + if (err) goto exit_free; if (data->config & 0x04) { /* tachometer enabled */ - if ((err = sysfs_create_group(&new_client->dev.kobj, - &lm63_group_fan1))) + err = sysfs_create_group(&new_client->dev.kobj, + &lm63_group_fan1); + if (err) goto exit_remove_files; } @@ -544,8 +574,10 @@ exit: return err; } -/* Idealy we shouldn't have to initialize anything, since the BIOS - should have taken care of everything */ +/* + * Ideally we shouldn't have to initialize anything, since the BIOS + * should have taken care of everything + */ static void lm63_init_client(struct i2c_client *client) { struct lm63_data *data = i2c_get_clientdata(client); |