Thread (11 messages) 11 messages, 3 authors, 2021-10-07
STALE1714d LANDED

[PATCH v2 5/8] iio: dac: max5821: Make use of the helper function dev_err_probe()

From: Cai Huoqing <hidden>
Date: 2021-09-28 01:39:39
Also in: linux-iio, lkml
Subsystem: iio subsystem and drivers, the rest · Maintainers: Jonathan Cameron, Linus Torvalds

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <redacted>
---
 drivers/iio/dac/max5821.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
index bd0b7f361154..7da4710a6408 100644
--- a/drivers/iio/dac/max5821.c
+++ b/drivers/iio/dac/max5821.c
@@ -321,12 +321,9 @@ static int max5821_probe(struct i2c_client *client,
 	}
 
 	data->vref_reg = devm_regulator_get(&client->dev, "vref");
-	if (IS_ERR(data->vref_reg)) {
-		ret = PTR_ERR(data->vref_reg);
-		dev_err(&client->dev,
-			"Failed to get vref regulator: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(data->vref_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(data->vref_reg),
+				     "Failed to get vref regulator\n");
 
 	ret = regulator_enable(data->vref_reg);
 	if (ret) {
-- 
2.25.1


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