[PATCH v2 7/8] regulator: fan53555: Use dev_err_probe

From: Cristian Ciocaltea
Date: Thu Apr 06 2023 - 13:19:09 EST


Use dev_err_probe() instead of dev_err() in the probe function, which
ensures the error code is always printed and, additionally, simplifies
the code a bit.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
---
drivers/regulator/fan53555.c | 47 ++++++++++++++++--------------------
1 file changed, 21 insertions(+), 26 deletions(-)

diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c
index 39c9c29f4ff6..acf14ba7aaa6 100644
--- a/drivers/regulator/fan53555.c
+++ b/drivers/regulator/fan53555.c
@@ -568,10 +568,9 @@ static int fan53555_regulator_probe(struct i2c_client *client)
if (!pdata)
pdata = fan53555_parse_dt(&client->dev, np, &di->desc);

- if (!pdata || !pdata->regulator) {
- dev_err(&client->dev, "Platform data not found!\n");
- return -ENODEV;
- }
+ if (!pdata || !pdata->regulator)
+ return dev_err_probe(&client->dev, -ENODEV,
+ "Platform data not found!\n");

di->regulator = pdata->regulator;
if (client->dev.of_node) {
@@ -580,10 +579,9 @@ static int fan53555_regulator_probe(struct i2c_client *client)
} else {
/* if no ramp constraint set, get the pdata ramp_delay */
if (!di->regulator->constraints.ramp_delay) {
- if (pdata->slew_rate >= ARRAY_SIZE(slew_rates)) {
- dev_err(&client->dev, "Invalid slew_rate\n");
- return -EINVAL;
- }
+ if (pdata->slew_rate >= ARRAY_SIZE(slew_rates))
+ return dev_err_probe(&client->dev, -EINVAL,
+ "Invalid slew_rate\n");

di->regulator->constraints.ramp_delay
= slew_rates[pdata->slew_rate];
@@ -593,34 +591,31 @@ static int fan53555_regulator_probe(struct i2c_client *client)
}

regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config);
- if (IS_ERR(regmap)) {
- dev_err(&client->dev, "Failed to allocate regmap!\n");
- return PTR_ERR(regmap);
- }
+ if (IS_ERR(regmap))
+ return dev_err_probe(&client->dev, PTR_ERR(regmap),
+ "Failed to allocate regmap!\n");
+
di->dev = &client->dev;
i2c_set_clientdata(client, di);
/* Get chip ID */
ret = regmap_read(regmap, FAN53555_ID1, &val);
- if (ret < 0) {
- dev_err(&client->dev, "Failed to get chip ID!\n");
- return ret;
- }
+ if (ret < 0)
+ return dev_err_probe(&client->dev, ret, "Failed to get chip ID!\n");
+
di->chip_id = val & DIE_ID;
/* Get chip revision */
ret = regmap_read(regmap, FAN53555_ID2, &val);
- if (ret < 0) {
- dev_err(&client->dev, "Failed to get chip Rev!\n");
- return ret;
- }
+ if (ret < 0)
+ return dev_err_probe(&client->dev, ret, "Failed to get chip Rev!\n");
+
di->chip_rev = val & DIE_REV;
dev_info(&client->dev, "FAN53555 Option[%d] Rev[%d] Detected!\n",
di->chip_id, di->chip_rev);
/* Device init */
ret = fan53555_device_setup(di, pdata);
- if (ret < 0) {
- dev_err(&client->dev, "Failed to setup device!\n");
- return ret;
- }
+ if (ret < 0)
+ return dev_err_probe(&client->dev, ret, "Failed to setup device!\n");
+
/* Register regulator */
config.dev = di->dev;
config.init_data = di->regulator;
@@ -630,9 +625,9 @@ static int fan53555_regulator_probe(struct i2c_client *client)

ret = fan53555_regulator_register(di, &config);
if (ret < 0)
- dev_err(&client->dev, "Failed to register regulator!\n");
- return ret;
+ dev_err_probe(&client->dev, ret, "Failed to register regulator!\n");

+ return ret;
}

static const struct i2c_device_id fan53555_id[] = {
--
2.40.0