[PATCH 2/2] iio: st_lsm9ds0: Make use of the helper function dev_err_probe()

From: Cai Huoqing
Date: Mon Sep 27 2021 - 04:41:54 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/imu/st_lsm9ds0/st_lsm9ds0_core.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
index b3a43a3b04ff..9fb06b7cde3c 100644
--- a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
+++ b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
@@ -24,10 +24,10 @@ static int st_lsm9ds0_power_enable(struct device *dev, struct st_lsm9ds0 *lsm9ds

/* Regulators not mandatory, but if requested we should enable them. */
lsm9ds0->vdd = devm_regulator_get(dev, "vdd");
- if (IS_ERR(lsm9ds0->vdd)) {
- dev_err(dev, "unable to get Vdd supply\n");
- return PTR_ERR(lsm9ds0->vdd);
- }
+ if (IS_ERR(lsm9ds0->vdd))
+ return dev_err_probe(dev, PTR_ERR(lsm9ds0->vdd),
+ "unable to get Vdd supply\n");
+
ret = regulator_enable(lsm9ds0->vdd);
if (ret) {
dev_warn(dev, "Failed to enable specified Vdd supply\n");
@@ -36,9 +36,9 @@ static int st_lsm9ds0_power_enable(struct device *dev, struct st_lsm9ds0 *lsm9ds

lsm9ds0->vdd_io = devm_regulator_get(dev, "vddio");
if (IS_ERR(lsm9ds0->vdd_io)) {
- dev_err(dev, "unable to get Vdd_IO supply\n");
regulator_disable(lsm9ds0->vdd);
- return PTR_ERR(lsm9ds0->vdd_io);
+ return dev_err_probe(dev, PTR_ERR(lsm9ds0->vdd_io),
+ "unable to get Vdd_IO supply\n");
}
ret = regulator_enable(lsm9ds0->vdd_io);
if (ret) {
--
2.25.1