[PATCH v2 4/9] iio: adc: max1118: Make use of the helper function dev_err_probe()

From: Cai Huoqing
Date: Mon Sep 27 2021 - 21:36:51 EST


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 <caihuoqing@xxxxxxxxx>
---
drivers/iio/adc/max1118.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c
index 8cec9d949083..a41bc570be21 100644
--- a/drivers/iio/adc/max1118.c
+++ b/drivers/iio/adc/max1118.c
@@ -221,10 +221,9 @@ static int max1118_probe(struct spi_device *spi)

if (id->driver_data == max1118) {
adc->reg = devm_regulator_get(&spi->dev, "vref");
- if (IS_ERR(adc->reg)) {
- dev_err(&spi->dev, "failed to get vref regulator\n");
- return PTR_ERR(adc->reg);
- }
+ if (IS_ERR(adc->reg))
+ return dev_err_probe(&spi->dev, PTR_ERR(adc->reg),
+ "failed to get vref regulator\n");
ret = regulator_enable(adc->reg);
if (ret)
return ret;
--
2.25.1