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alistair23-linux
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Merge tag 'hwmon-for-linus-v4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging 

Pull hwmon fix from Guenter Roeck:
 "Handle errors from thermal subsystem"

* tag 'hwmon-for-linus-v4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: Deal with errors from the thermal subsystem
hifive-unleashed-5.1
Linus Torvalds 2017-12-26 18:22:20 -08:00
parent e2a930071d 47c332deb8
commit beacbc68ac
1 changed files with 17 additions and 4 deletions
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21
drivers/hwmon/hwmon.c
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@ -143,6 +143,7 @@ static int hwmon_thermal_add_sensor(struct device *dev,
struct hwmon_device *hwdev, int index)
{
struct hwmon_thermal_data *tdata;
struct thermal_zone_device *tzd;
tdata = devm_kzalloc(dev, sizeof(*tdata), GFP_KERNEL);
if (!tdata)
@ -151,8 +152,14 @@ static int hwmon_thermal_add_sensor(struct device *dev,
tdata->hwdev = hwdev;
tdata->index = index;
devm_thermal_zone_of_sensor_register(&hwdev->dev, index, tdata,
&hwmon_thermal_ops);
tzd = devm_thermal_zone_of_sensor_register(&hwdev->dev, index, tdata,
&hwmon_thermal_ops);
/*
* If CONFIG_THERMAL_OF is disabled, this returns -ENODEV,
* so ignore that error but forward any other error.
*/
if (IS_ERR(tzd) && (PTR_ERR(tzd) != -ENODEV))
return PTR_ERR(tzd);
return 0;
}
@ -621,14 +628,20 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
if (!chip->ops->is_visible(drvdata, hwmon_temp,
hwmon_temp_input, j))
continue;
if (info[i]->config[j] & HWMON_T_INPUT)
hwmon_thermal_add_sensor(dev, hwdev, j);
if (info[i]->config[j] & HWMON_T_INPUT) {
err = hwmon_thermal_add_sensor(dev,
hwdev, j);
if (err)
goto free_device;
}
}
}
}
return hdev;
free_device:
device_unregister(hdev);
free_hwmon:
kfree(hwdev);
ida_remove: