Merge tag 'hwmon-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:

 - Add driver for Intersil ISL68137 PWM Controller

 - Add driver for Lochnagar 2

 - Add driver for Infineon IR38064 Voltage Regulator

 - Add support for TMP75B to lm75 driver

 - Convert documentation to ReST format

 - Use request_muxed_region for Super-IO accesses in several drivers

 - Add 'samples' attribute to ABI, and start using it

 - Add support for custom sysfs attributes to pmbus drivers (used in
   ISL68137 driver)

 - Introduce HWMON_CHANNEL_INFO macro

 - Automated changes:
      - Use permission specific [SENSOR_][DEVICE_]ATTR variants
      - Fix build warnings due to unused of_device_id structures
      - Use HWMON_CHANNEL_INFO macro

 - Various minor improvements and fixes

* tag 'hwmon-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (125 commits)
  hwmon: (lm75) Add support for TMP75B
  dt-bindings: hwmon: Add tmp75b to lm75.txt
  hwmon: (s3c) Use dev_get_drvdata()
  hwmon: (max6650) Drop call to thermal_cdev_update
  docs: hwmon: remove the extension from .rst files
  docs: hwmon: convert three docs to ReST format
  hwmon: (max6650) add thermal cooling device capability
  hwmon: (ina3221) Add voltage conversion time settings
  hwmon: (ina3221) Do not read-back to cache reg_config
  docs: hwmon: Add an index file and rename docs to *.rst
  docs: hwmon: convert remaining files to ReST format
  docs: hwmon: misc files: convert to ReST format
  docs: hwmon: pmbus files: convert to ReST format
  docs: hwmon: k8temp, w83793: convert to ReST format
  docs: hwmon: da9052, da9055: convert to ReST format
  docs: hwmon: wm831x, wm8350: convert to ReST format
  docs: hwmon: dme1737, vt1211: convert to ReST format
  docs: hwmon: ads1015: convert to ReST format
  docs: hwmon: asc7621: convert to ReST format
  docs: hwmon: ibmpowernv: convert to ReST format
  ...

1 files changed, 15 insertions, 12 deletions

diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
index 5c3c08449de7..1770423f7a80 100644
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c
@@ -92,6 +92,9 @@ static int iio_hwmon_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	for (i = 0; i < st->num_channels; i++) {
+		const char *prefix;
+		int n;
+
 		a = devm_kzalloc(dev, sizeof(*a), GFP_KERNEL);
 		if (a == NULL)
 			return -ENOMEM;
@@ -103,28 +106,28 @@ static int iio_hwmon_probe(struct platform_device *pdev)
 
 		switch (type) {
 		case IIO_VOLTAGE:
-			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
-							       "in%d_input",
-							       in_i++);
+			n = in_i++;
+			prefix = "in";
 			break;
 		case IIO_TEMP:
-			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
-							       "temp%d_input",
-							       temp_i++);
+			n = temp_i++;
+			prefix = "temp";
 			break;
 		case IIO_CURRENT:
-			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
-							       "curr%d_input",
-							       curr_i++);
+			n = curr_i++;
+			prefix = "curr";
 			break;
 		case IIO_HUMIDITYRELATIVE:
-			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
-							       "humidity%d_input",
-							       humidity_i++);
+			n = humidity_i++;
+			prefix = "humidity";
 			break;
 		default:
 			return -EINVAL;
 		}
+
+		a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
+						       "%s%d_input",
+						       prefix, n);
 		if (a->dev_attr.attr.name == NULL)
 			return -ENOMEM;