[PATCH v2 3/4] iio: light: gp2ap002: Make use of the helper function dev_err_probe()

From: Cai Huoqing
Date: Mon Sep 27 2021 - 21:42:38 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/light/gp2ap002.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/light/gp2ap002.c b/drivers/iio/light/gp2ap002.c
index f960be7d4001..724a3928ead1 100644
--- a/drivers/iio/light/gp2ap002.c
+++ b/drivers/iio/light/gp2ap002.c
@@ -521,15 +521,14 @@ static int gp2ap002_probe(struct i2c_client *client,
}

gp2ap002->vdd = devm_regulator_get(dev, "vdd");
- if (IS_ERR(gp2ap002->vdd)) {
- dev_err(dev, "failed to get VDD regulator\n");
- return PTR_ERR(gp2ap002->vdd);
- }
+ if (IS_ERR(gp2ap002->vdd))
+ return dev_err_probe(dev, PTR_ERR(gp2ap002->vdd),
+ "failed to get VDD regulator\n");
+
gp2ap002->vio = devm_regulator_get(dev, "vio");
- if (IS_ERR(gp2ap002->vio)) {
- dev_err(dev, "failed to get VIO regulator\n");
- return PTR_ERR(gp2ap002->vio);
- }
+ if (IS_ERR(gp2ap002->vio))
+ return dev_err_probe(dev, PTR_ERR(gp2ap002->vio),
+ "failed to get VIO regulator\n");

/* Operating voltage 2.4V .. 3.6V according to datasheet */
ret = regulator_set_voltage(gp2ap002->vdd, 2400000, 3600000);
--
2.25.1