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hwmon: (w83792d) convert to use devm_i2c_new_dummy_device

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And simplify the error handling.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20190903181256.13450-3-wsa+renesas@sang-engineering.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Wolfram Sang 2019-09-03 20:12:55 +02:00 committed by Guenter Roeck
parent 358d207110
commit f64211151d
1 changed files with 9 additions and 23 deletions
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32
drivers/hwmon/w83792d.c
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@ -924,7 +924,7 @@ store_sf2_level(struct device *dev, struct device_attribute *attr,
static int
w83792d_detect_subclients(struct i2c_client *new_client)
{
int i, id, err;
int i, id;
int address = new_client->addr;
u8 val;
struct i2c_adapter *adapter = new_client->adapter;
@ -938,8 +938,7 @@ w83792d_detect_subclients(struct i2c_client *new_client)
dev_err(&new_client->dev,
"invalid subclient address %d; must be 0x48-0x4f\n",
force_subclients[i]);
err = -ENODEV;
goto ERROR_SC_0;
return -ENODEV;
}
}
w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
@ -949,28 +948,21 @@ w83792d_detect_subclients(struct i2c_client *new_client)
val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
if (!(val & 0x08))
data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
data->lm75[0] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
0x48 + (val & 0x7));
if (!(val & 0x80)) {
if ((data->lm75[0] != NULL) &&
if (!IS_ERR(data->lm75[0]) &&
((val & 0x7) == ((val >> 4) & 0x7))) {
dev_err(&new_client->dev,
"duplicate addresses 0x%x, use force_subclient\n",
data->lm75[0]->addr);
err = -ENODEV;
goto ERROR_SC_1;
return -ENODEV;
}
data->lm75[1] = i2c_new_dummy(adapter,
0x48 + ((val >> 4) & 0x7));
data->lm75[1] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
0x48 + ((val >> 4) & 0x7));
}
return 0;
/* Undo inits in case of errors */
ERROR_SC_1:
i2c_unregister_device(data->lm75[0]);
ERROR_SC_0:
return err;
}
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
@ -1396,7 +1388,7 @@ w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* Register sysfs hooks */
err = sysfs_create_group(&dev->kobj, &w83792d_group);
if (err)
goto exit_i2c_unregister;
return err;
/*
* Read GPIO enable register to check if pins for fan 4,5 are used as
@ -1441,9 +1433,6 @@ exit_remove_files:
sysfs_remove_group(&dev->kobj, &w83792d_group);
for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
exit_i2c_unregister:
i2c_unregister_device(data->lm75[0]);
i2c_unregister_device(data->lm75[1]);
return err;
}
@ -1459,9 +1448,6 @@ w83792d_remove(struct i2c_client *client)
sysfs_remove_group(&client->dev.kobj,
&w83792d_group_fan[i]);
i2c_unregister_device(data->lm75[0]);
i2c_unregister_device(data->lm75[1]);
return 0;
}