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Two patches headed for -stable. 

nct7802: Fix integer overflow seen when writing voltage limits
 nct7904: Rename pwm attributes to match hwmon ABI
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Merge tag 'hwmon-for-linus-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Two patches headed for -stable.

  nct7802: Fix integer overflow seen when writing voltage limits
  nct7904: Rename pwm attributes to match hwmon ABI"

* tag 'hwmon-for-linus-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct7802) Fix integer overflow seen when writing voltage limits
  hwmon: (nct7904) Rename pwm attributes to match hwmon ABI
This commit is contained in:
Linus Torvalds 2015-07-30 08:04:19 -07:00
parent d41a83ba4b 9200bc4c28
commit 0a552051a4
3 changed files with 32 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/hwmon/nct7904
View File

@ -35,11 +35,11 @@ temp1_input Local temperature (1/1000 degree,
temp[2-9]_input CPU temperatures (1/1000 degree,
0.125 degree resolution)
fan[1-4]_mode R/W, 0/1 for manual or SmartFan mode
pwm[1-4]_enable R/W, 1/2 for manual or SmartFan mode
Setting SmartFan mode is supported only if it has been
previously configured by BIOS (or configuration EEPROM)
fan[1-4]_pwm R/O in SmartFan mode, R/W in manual control mode
pwm[1-4] R/O in SmartFan mode, R/W in manual control mode
The driver checks sensor control registers and does not export the sensors
that are not enabled. Anyway, a sensor that is enabled may actually be not

2
drivers/hwmon/nct7802.c
View File

@ -195,7 +195,7 @@ abort:
}
static int nct7802_write_voltage(struct nct7802_data *data, int nr, int index,
unsigned int voltage)
unsigned long voltage)
{
int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr];
int err;

57
drivers/hwmon/nct7904.c
View File

@ -412,8 +412,9 @@ static ssize_t show_pwm(struct device *dev,
return sprintf(buf, "%d\n", val);
}
static ssize_t store_mode(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
static ssize_t store_enable(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
@ -422,18 +423,18 @@ static ssize_t store_mode(struct device *dev, struct device_attribute *devattr,
if (kstrtoul(buf, 10, &val) < 0)
return -EINVAL;
if (val > 1 || (val && !data->fan_mode[index]))
if (val < 1 || val > 2 || (val == 2 && !data->fan_mode[index]))
return -EINVAL;
ret = nct7904_write_reg(data, BANK_3, FANCTL1_FMR_REG + index,
val ? data->fan_mode[index] : 0);
val == 2 ? data->fan_mode[index] : 0);
return ret ? ret : count;
}
/* Return 0 for manual mode or 1 for SmartFan mode */
static ssize_t show_mode(struct device *dev,
struct device_attribute *devattr, char *buf)
/* Return 1 for manual mode or 2 for SmartFan mode */
static ssize_t show_enable(struct device *dev,
struct device_attribute *devattr, char *buf)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
@ -443,36 +444,36 @@ static ssize_t show_mode(struct device *dev,
if (val < 0)
return val;
return sprintf(buf, "%d\n", val ? 1 : 0);
return sprintf(buf, "%d\n", val ? 2 : 1);
}
/* 2 attributes per channel: pwm and mode */
static SENSOR_DEVICE_ATTR(fan1_pwm, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 0);
static SENSOR_DEVICE_ATTR(fan1_mode, S_IRUGO | S_IWUSR,
show_mode, store_mode, 0);
static SENSOR_DEVICE_ATTR(fan2_pwm, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 1);
static SENSOR_DEVICE_ATTR(fan2_mode, S_IRUGO | S_IWUSR,
show_mode, store_mode, 1);
static SENSOR_DEVICE_ATTR(fan3_pwm, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 1);
static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 2);
static SENSOR_DEVICE_ATTR(fan3_mode, S_IRUGO | S_IWUSR,
show_mode, store_mode, 2);
static SENSOR_DEVICE_ATTR(fan4_pwm, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 2);
static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 3);
static SENSOR_DEVICE_ATTR(fan4_mode, S_IRUGO | S_IWUSR,
show_mode, store_mode, 3);
static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 3);
static struct attribute *nct7904_fanctl_attrs[] = {
&sensor_dev_attr_fan1_pwm.dev_attr.attr,
&sensor_dev_attr_fan1_mode.dev_attr.attr,
&sensor_dev_attr_fan2_pwm.dev_attr.attr,
&sensor_dev_attr_fan2_mode.dev_attr.attr,
&sensor_dev_attr_fan3_pwm.dev_attr.attr,
&sensor_dev_attr_fan3_mode.dev_attr.attr,
&sensor_dev_attr_fan4_pwm.dev_attr.attr,
&sensor_dev_attr_fan4_mode.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
&sensor_dev_attr_pwm4_enable.dev_attr.attr,
NULL
};