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i2c: core: simplify devm_i2c_new_dummy_device()

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Use devm_add_action_or_reset() instead of devres_alloc() and
devres_add(), which works the same. This will simplify the
code. There is no functional change.

Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Yicong Yang 2021-04-08 20:17:40 +08:00 committed by Wolfram Sang
parent 3ab4ce2daf
commit bb7f086b84
1 changed files with 9 additions and 19 deletions
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28
drivers/i2c/i2c-core-base.c
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@ -1016,15 +1016,9 @@ struct i2c_client *i2c_new_dummy_device(struct i2c_adapter *adapter, u16 address
}
EXPORT_SYMBOL_GPL(i2c_new_dummy_device);
struct i2c_dummy_devres {
struct i2c_client *client;
};
static void devm_i2c_release_dummy(struct device *dev, void *res)
static void devm_i2c_release_dummy(void *client)
{
struct i2c_dummy_devres *this = res;
i2c_unregister_device(this->client);
i2c_unregister_device(client);
}
/**
@ -1041,20 +1035,16 @@ struct i2c_client *devm_i2c_new_dummy_device(struct device *dev,
struct i2c_adapter *adapter,
u16 address)
{
struct i2c_dummy_devres *dr;
struct i2c_client *client;
dr = devres_alloc(devm_i2c_release_dummy, sizeof(*dr), GFP_KERNEL);
if (!dr)
return ERR_PTR(-ENOMEM);
int ret;
client = i2c_new_dummy_device(adapter, address);
if (IS_ERR(client)) {
devres_free(dr);
} else {
dr->client = client;
devres_add(dev, dr);
}
if (IS_ERR(client))
return client;
ret = devm_add_action_or_reset(dev, devm_i2c_release_dummy, client);
if (ret)
return ERR_PTR(ret);
return client;
}