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path: root/drivers/hwmon/adt7473.c
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Diffstat (limited to 'drivers/hwmon/adt7473.c')
-rw-r--r--drivers/hwmon/adt7473.c87
1 files changed, 72 insertions, 15 deletions
diff --git a/drivers/hwmon/adt7473.c b/drivers/hwmon/adt7473.c
index b9a8ea30c99..0a6ce2367b4 100644
--- a/drivers/hwmon/adt7473.c
+++ b/drivers/hwmon/adt7473.c
@@ -357,7 +357,12 @@ static ssize_t set_volt_min(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10));
+ long volt;
+
+ if (strict_strtol(buf, 10, &volt))
+ return -EINVAL;
+
+ volt = encode_volt(attr->index, volt);
mutex_lock(&data->lock);
data->volt_min[attr->index] = volt;
@@ -386,7 +391,12 @@ static ssize_t set_volt_max(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10));
+ long volt;
+
+ if (strict_strtol(buf, 10, &volt))
+ return -EINVAL;
+
+ volt = encode_volt(attr->index, volt);
mutex_lock(&data->lock);
data->volt_max[attr->index] = volt;
@@ -419,7 +429,8 @@ static int decode_temp(u8 twos_complement, u8 raw)
static u8 encode_temp(u8 twos_complement, int cooked)
{
- return twos_complement ? cooked & 0xFF : cooked + 64;
+ u8 ret = twos_complement ? cooked & 0xFF : cooked + 64;
+ return SENSORS_LIMIT(ret, 0, 255);
}
static ssize_t show_temp_min(struct device *dev,
@@ -441,7 +452,12 @@ static ssize_t set_temp_min(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
@@ -472,7 +488,12 @@ static ssize_t set_temp_max(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
@@ -515,11 +536,13 @@ static ssize_t set_fan_min(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
- if (!temp)
+ if (strict_strtol(buf, 10, &temp) || !temp)
return -EINVAL;
+
temp = FAN_RPM_TO_PERIOD(temp);
+ temp = SENSORS_LIMIT(temp, 1, 65534);
mutex_lock(&data->lock);
data->fan_min[attr->index] = temp;
@@ -558,7 +581,10 @@ static ssize_t set_max_duty_at_crit(struct device *dev,
u8 reg;
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
mutex_lock(&data->lock);
data->max_duty_at_overheat = !!temp;
@@ -587,7 +613,12 @@ static ssize_t set_pwm(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 adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = SENSORS_LIMIT(temp, 0, 255);
mutex_lock(&data->lock);
data->pwm[attr->index] = temp;
@@ -614,7 +645,12 @@ static ssize_t set_pwm_max(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = SENSORS_LIMIT(temp, 0, 255);
mutex_lock(&data->lock);
data->pwm_max[attr->index] = temp;
@@ -642,7 +678,12 @@ static ssize_t set_pwm_min(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = SENSORS_LIMIT(temp, 0, 255);
mutex_lock(&data->lock);
data->pwm_min[attr->index] = temp;
@@ -672,7 +713,12 @@ static ssize_t set_temp_tmax(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
@@ -703,7 +749,12 @@ static ssize_t set_temp_tmin(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
@@ -741,7 +792,10 @@ static ssize_t set_pwm_enable(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
switch (temp) {
case 0:
@@ -805,7 +859,10 @@ static ssize_t set_pwm_auto_temp(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
switch (temp) {
case 1:
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-08 09:12:10 +0000