devm_* APIs are device managed and make the exit and clean up code simpler.
Signed-off-by: Sachin Kamat <[email protected]> Cc: Joonyoung Shim <[email protected]> --- Compile tested against linux-next tree (20130108). --- drivers/input/touchscreen/mms114.c | 41 +++++++++++------------------------ 1 files changed, 13 insertions(+), 28 deletions(-) diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index 98841d8..22295ec 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -429,12 +429,12 @@ static int mms114_probe(struct i2c_client *client, return -ENODEV; } - data = kzalloc(sizeof(struct mms114_data), GFP_KERNEL); - input_dev = input_allocate_device(); + data = devm_kzalloc(&client->dev, sizeof(struct mms114_data), + GFP_KERNEL); + input_dev = devm_input_allocate_device(&client->dev); if (!data || !input_dev) { dev_err(&client->dev, "Failed to allocate memory\n"); - error = -ENOMEM; - goto err_free_mem; + return -ENOMEM; } data->client = client; @@ -466,58 +466,43 @@ static int mms114_probe(struct i2c_client *client, input_set_drvdata(input_dev, data); i2c_set_clientdata(client, data); - data->core_reg = regulator_get(&client->dev, "avdd"); + data->core_reg = devm_regulator_get(&client->dev, "avdd"); if (IS_ERR(data->core_reg)) { error = PTR_ERR(data->core_reg); dev_err(&client->dev, "Unable to get the Core regulator (%d)\n", error); - goto err_free_mem; + return error; } - data->io_reg = regulator_get(&client->dev, "vdd"); + data->io_reg = devm_regulator_get(&client->dev, "vdd"); if (IS_ERR(data->io_reg)) { error = PTR_ERR(data->io_reg); dev_err(&client->dev, "Unable to get the IO regulator (%d)\n", error); - goto err_core_reg; + return error; } - error = request_threaded_irq(client->irq, NULL, mms114_interrupt, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "mms114", data); + error = devm_request_threaded_irq(&client->dev, client->irq, NULL, + mms114_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "mms114", data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); - goto err_io_reg; + return error; } disable_irq(client->irq); error = input_register_device(data->input_dev); if (error) - goto err_free_irq; + return error; return 0; - -err_free_irq: - free_irq(client->irq, data); -err_io_reg: - regulator_put(data->io_reg); -err_core_reg: - regulator_put(data->core_reg); -err_free_mem: - input_free_device(input_dev); - kfree(data); - return error; } static int mms114_remove(struct i2c_client *client) { struct mms114_data *data = i2c_get_clientdata(client); - free_irq(client->irq, data); - regulator_put(data->io_reg); - regulator_put(data->core_reg); input_unregister_device(data->input_dev); - kfree(data); - return 0; } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
