[PATCH v1 1/1] hwmon: (pmbus/tps25990) Don't check for specific errors when parsing properties

[Andy Shevchenko]

Instead of checking for the specific error codes (that can be considered
a layering violation to some extent) check for the property existence first
and then either parse it, or apply a default value.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/hwmon/pmbus/tps25990.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/pmbus/tps25990.c b/drivers/hwmon/pmbus/tps25990.c
index c13edd7e1abf..05c6288ecafc 100644
--- a/drivers/hwmon/pmbus/tps25990.c
+++ b/drivers/hwmon/pmbus/tps25990.c
@@ -402,12 +402,18 @@ static int tps25990_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
 	struct pmbus_driver_info *info;
-	u32 rimon = TPS25990_DEFAULT_RIMON;
+	const char *propname;
+	u32 rimon;
 	int ret;
 
-	ret = device_property_read_u32(dev, "ti,rimon-micro-ohms", &rimon);
-	if (ret < 0 && ret != -EINVAL)
-		return dev_err_probe(dev, ret, "failed to get rimon\n");
+	propname = "ti,rimon-micro-ohms";
+	if (device_property_present(dev, propname)) {
+		ret = device_property_read_u32(dev, propname, &rimon);
+		if (ret)
+			return dev_err_probe(dev, ret, "failed to get %s\n", propname);
+	} else {
+		rimon = TPS25990_DEFAULT_RIMON;
+	}
 
 	info = devm_kmemdup(dev, &tps25990_base_info, sizeof(*info), GFP_KERNEL);
 	if (!info)
-- 
2.50.1