diff options
author | Sachin Kamat <sachin.kamat@linaro.org> | 2013-01-09 18:03:27 +0100 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-01-17 09:28:05 +0100 |
commit | 8a0b6c5d14bbaf62a4f19131ac16ac81ed909fda (patch) | |
tree | 58e46c096e7eb8bf6463ba1d78cf848d9a813aad | |
parent | Input: tegra-kbc - remove default keymap (diff) | |
download | linux-8a0b6c5d14bbaf62a4f19131ac16ac81ed909fda.tar.xz linux-8a0b6c5d14bbaf62a4f19131ac16ac81ed909fda.zip |
Input: mms114 - switch to using managed resources
devm_* APIs are device managed and make the exit and clean up code
simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Laxman Dewangan<ldewangan@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-rw-r--r-- | drivers/input/touchscreen/mms114.c | 54 |
1 files changed, 16 insertions, 38 deletions
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index 98841d8aa635..4a29ddf6bf1e 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; @@ -466,57 +466,36 @@ 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, + dev_name(&client->dev), 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 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); + if (error) { + dev_err(&client->dev, "Failed to register input device\n"); + return error; + } return 0; } @@ -590,7 +569,6 @@ static struct i2c_driver mms114_driver = { .of_match_table = of_match_ptr(mms114_dt_match), }, .probe = mms114_probe, - .remove = mms114_remove, .id_table = mms114_id, }; |