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Input: twl6040-vibra - use devm functions

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Using devm_regulator_bulk_get() and devm_input_allocate_device() can make
the code cleaner and smaller as we do not need to manually free resources
the error and remove paths.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Fabio Estevam 2014-04-25 09:21:12 -07:00 committed by Dmitry Torokhov
parent c728601ea3
commit 1f9e1470ab
1 changed files with 32 additions and 51 deletions
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83
drivers/input/misc/twl6040-vibra.c
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@ -262,7 +262,7 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
struct vibra_info *info;
int vddvibl_uV = 0;
int vddvibr_uV = 0;
int ret;
int error;
twl6040_core_node = of_find_node_by_name(twl6040_core_dev->of_node,
"vibra");
@ -309,12 +309,12 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
mutex_init(&info->mutex);
ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
twl6040_vib_irq_handler, 0,
"twl6040_irq_vib", info);
if (ret) {
dev_err(info->dev, "VIB IRQ request failed: %d\n", ret);
return ret;
error = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
twl6040_vib_irq_handler, 0,
"twl6040_irq_vib", info);
if (error) {
dev_err(info->dev, "VIB IRQ request failed: %d\n", error);
return error;
}
info->supplies[0].supply = "vddvibl";
@ -323,40 +323,40 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
* When booted with Device tree the regulators are attached to the
* parent device (twl6040 MFD core)
*/
ret = regulator_bulk_get(twl6040_core_dev, ARRAY_SIZE(info->supplies),
info->supplies);
if (ret) {
dev_err(info->dev, "couldn't get regulators %d\n", ret);
return ret;
error = devm_regulator_bulk_get(twl6040_core_dev,
ARRAY_SIZE(info->supplies),
info->supplies);
if (error) {
dev_err(info->dev, "couldn't get regulators %d\n", error);
return error;
}
if (vddvibl_uV) {
ret = regulator_set_voltage(info->supplies[0].consumer,
vddvibl_uV, vddvibl_uV);
if (ret) {
error = regulator_set_voltage(info->supplies[0].consumer,
vddvibl_uV, vddvibl_uV);
if (error) {
dev_err(info->dev, "failed to set VDDVIBL volt %d\n",
ret);
goto err_regulator;
error);
return error;
}
}
if (vddvibr_uV) {
ret = regulator_set_voltage(info->supplies[1].consumer,
vddvibr_uV, vddvibr_uV);
if (ret) {
error = regulator_set_voltage(info->supplies[1].consumer,
vddvibr_uV, vddvibr_uV);
if (error) {
dev_err(info->dev, "failed to set VDDVIBR volt %d\n",
ret);
goto err_regulator;
error);
return error;
}
}
INIT_WORK(&info->play_work, vibra_play_work);
info->input_dev = input_allocate_device();
if (info->input_dev == NULL) {
info->input_dev = devm_input_allocate_device(&pdev->dev);
if (!info->input_dev) {
dev_err(info->dev, "couldn't allocate input device\n");
ret = -ENOMEM;
goto err_regulator;
return -ENOMEM;
}
input_set_drvdata(info->input_dev, info);
@ -367,44 +367,25 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
info->input_dev->close = twl6040_vibra_close;
__set_bit(FF_RUMBLE, info->input_dev->ffbit);
ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
if (ret < 0) {
error = input_ff_create_memless(info->input_dev, NULL, vibra_play);
if (error) {
dev_err(info->dev, "couldn't register vibrator to FF\n");
goto err_ialloc;
return error;
}
ret = input_register_device(info->input_dev);
if (ret < 0) {
error = input_register_device(info->input_dev);
if (error) {
dev_err(info->dev, "couldn't register input device\n");
goto err_iff;
return error;
}
platform_set_drvdata(pdev, info);
return 0;
err_iff:
input_ff_destroy(info->input_dev);
err_ialloc:
input_free_device(info->input_dev);
err_regulator:
regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies);
return ret;
}
static int twl6040_vibra_remove(struct platform_device *pdev)
{
struct vibra_info *info = platform_get_drvdata(pdev);
input_unregister_device(info->input_dev);
regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies);
return 0;
}
static struct platform_driver twl6040_vibra_driver = {
.probe = twl6040_vibra_probe,
.remove = twl6040_vibra_remove,
.driver = {
.name = "twl6040-vibra",
.owner = THIS_MODULE,