[PATCH v2] hwmon: Make name attribute mandatory for new APIs

[Guenter Roeck <linux@roeck-us.net>]

It does not make sense to use one of the the new APIs when not
even providing a name attribute. Make it mandatory.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v2: One should use ERR_PTR where appropriate

 drivers/hwmon/hwmon.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index 0c5660ccdbf4..a408b10d9a86 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -651,6 +651,9 @@ hwmon_device_register_with_groups(struct device *dev, const char *name,
 				  void *drvdata,
 				  const struct attribute_group **groups)
 {
+	if (!name)
+		return ERR_PTR(-EINVAL);
+
 	return __hwmon_device_register(dev, name, drvdata, NULL, groups);
 }
 EXPORT_SYMBOL_GPL(hwmon_device_register_with_groups);
@@ -674,6 +677,9 @@ hwmon_device_register_with_info(struct device *dev, const char *name,
 				const struct hwmon_chip_info *chip,
 				const struct attribute_group **extra_groups)
 {
+	if (!name)
+		return ERR_PTR(-EINVAL);
+
 	if (chip && (!chip->ops || !chip->ops->is_visible || !chip->info))
 		return ERR_PTR(-EINVAL);
 
-- 
2.7.4