| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20210926162110.3536436-1-aardelean@deviqon.com>
Date: Sun, 26 Sep 2021 19:21:10 +0300
From: Alexandru Ardelean <aardelean@...iqon.com>
To: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Cc: jic23@...nel.org, Alexandru Ardelean <aardelean@...iqon.com>
Subject: [PATCH] iio: adc: max1363: convert probe to full device-managed
For this conversion, the 2 regulators (being enabled) require each a
devm_add_action_or_reset() hook registration.
For the other functions, there are device-managed variants.
Signed-off-by: Alexandru Ardelean <aardelean@...iqon.com>
---
drivers/iio/adc/max1363.c | 82 ++++++++++++++-------------------------
1 file changed, 30 insertions(+), 52 deletions(-)
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index f2b576c69949..eef55ed4814a 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -1577,6 +1577,11 @@ static const struct of_device_id max1363_of_match[] = {
};
MODULE_DEVICE_TABLE(of, max1363_of_match);
+static void max1363_reg_disable(void *reg)
+{
+ regulator_disable(reg);
+}
+
static int max1363_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1590,7 +1595,8 @@ static int max1363_probe(struct i2c_client *client,
if (!indio_dev)
return -ENOMEM;
- ret = iio_map_array_register(indio_dev, client->dev.platform_data);
+ ret = devm_iio_map_array_register(&client->dev, indio_dev,
+ client->dev.platform_data);
if (ret < 0)
return ret;
@@ -1598,17 +1604,16 @@ static int max1363_probe(struct i2c_client *client,
mutex_init(&st->lock);
st->reg = devm_regulator_get(&client->dev, "vcc");
- if (IS_ERR(st->reg)) {
- ret = PTR_ERR(st->reg);
- goto error_unregister_map;
- }
+ if (IS_ERR(st->reg))
+ return PTR_ERR(st->reg);
ret = regulator_enable(st->reg);
if (ret)
- goto error_unregister_map;
+ return ret;
- /* this is only used for device removal purposes */
- i2c_set_clientdata(client, indio_dev);
+ ret = devm_add_action_or_reset(&client->dev, max1363_reg_disable, st->reg);
+ if (ret)
+ return ret;
st->chip_info = device_get_match_data(&client->dev);
if (!st->chip_info)
@@ -1622,13 +1627,17 @@ static int max1363_probe(struct i2c_client *client,
ret = regulator_enable(vref);
if (ret)
- goto error_disable_reg;
+ return ret;
+
+ ret = devm_add_action_or_reset(&client->dev, max1363_reg_disable, vref);
+ if (ret)
+ return ret;
+
st->vref = vref;
vref_uv = regulator_get_voltage(vref);
- if (vref_uv <= 0) {
- ret = -EINVAL;
- goto error_disable_reg;
- }
+ if (vref_uv <= 0)
+ return -EINVAL;
+
st->vref_uv = vref_uv;
}
@@ -1640,13 +1649,12 @@ static int max1363_probe(struct i2c_client *client,
st->send = max1363_smbus_send;
st->recv = max1363_smbus_recv;
} else {
- ret = -EOPNOTSUPP;
- goto error_disable_reg;
+ return -EOPNOTSUPP;
}
ret = max1363_alloc_scan_masks(indio_dev);
if (ret)
- goto error_disable_reg;
+ return ret;
indio_dev->name = id->name;
indio_dev->channels = st->chip_info->channels;
@@ -1655,12 +1663,12 @@ static int max1363_probe(struct i2c_client *client,
indio_dev->modes = INDIO_DIRECT_MODE;
ret = max1363_initial_setup(st);
if (ret < 0)
- goto error_disable_reg;
+ return ret;
- ret = iio_triggered_buffer_setup(indio_dev, NULL,
- &max1363_trigger_handler, NULL);
+ ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev, NULL,
+ &max1363_trigger_handler, NULL);
if (ret)
- goto error_disable_reg;
+ return ret;
if (client->irq) {
ret = devm_request_threaded_irq(&client->dev, st->client->irq,
@@ -1671,39 +1679,10 @@ static int max1363_probe(struct i2c_client *client,
indio_dev);
if (ret)
- goto error_uninit_buffer;
+ return ret;
}
- ret = iio_device_register(indio_dev);
- if (ret < 0)
- goto error_uninit_buffer;
-
- return 0;
-
-error_uninit_buffer:
- iio_triggered_buffer_cleanup(indio_dev);
-error_disable_reg:
- if (st->vref)
- regulator_disable(st->vref);
- regulator_disable(st->reg);
-error_unregister_map:
- iio_map_array_unregister(indio_dev);
- return ret;
-}
-
-static int max1363_remove(struct i2c_client *client)
-{
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
- struct max1363_state *st = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
- iio_triggered_buffer_cleanup(indio_dev);
- if (st->vref)
- regulator_disable(st->vref);
- regulator_disable(st->reg);
- iio_map_array_unregister(indio_dev);
-
- return 0;
+ return devm_iio_device_register(&client->dev, indio_dev);
}
static const struct i2c_device_id max1363_id[] = {
@@ -1756,7 +1735,6 @@ static struct i2c_driver max1363_driver = {
.of_match_table = max1363_of_match,
},
.probe = max1363_probe,
- .remove = max1363_remove,
.id_table = max1363_id,
};
module_i2c_driver(max1363_driver);
--
2.31.1
Powered by blists - more mailing lists