kfree(i2c_get_clientdata(client));
kfree(data);
static int atxp1_detach_client(struct i2c_client * client){	int err;	err = i2c_detach_client(client);	if (err)		dev_err(&client->dev, "Failed to detach client.\n");	else		kfree(i2c_get_clientdata(client));	return err;};