[PATCH 2/2] Input: da9055_onkey: convert to use devm_*

From: Kiran Padwal
Date: Fri Aug 08 2014 - 03:19:53 EST


Converting to devm functions can make the code smaller and cleaner.

Signed-off-by: Kiran Padwal <kiran.padwal@xxxxxxxxxxxxxxx>
---
drivers/input/misc/da9055_onkey.c | 22 ++++++----------------
1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/input/misc/da9055_onkey.c b/drivers/input/misc/da9055_onkey.c
index ed6eaa9..1a1e760 100644
--- a/drivers/input/misc/da9055_onkey.c
+++ b/drivers/input/misc/da9055_onkey.c
@@ -90,9 +90,9 @@ static int da9055_onkey_probe(struct platform_device *pdev)
if (!onkey)
return -ENOMEM;

- input_dev = input_allocate_device();
+ input_dev = devm_input_allocate_device(&pdev->dev);
if (!input_dev) {
- dev_err(&pdev->dev, "Failed to allocate memory\n");
+ dev_err(&pdev->dev, "Failed to allocate input device\n");
return -ENOMEM;
}

@@ -107,43 +107,33 @@ static int da9055_onkey_probe(struct platform_device *pdev)

INIT_DELAYED_WORK(&onkey->work, da9055_onkey_work);

- err = request_threaded_irq(irq, NULL, da9055_onkey_irq,
+ err = devm_request_threaded_irq(&pdev->dev, irq, NULL, da9055_onkey_irq,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"ONKEY", onkey);
if (err < 0) {
dev_err(&pdev->dev,
"Failed to register ONKEY IRQ %d, error = %d\n",
irq, err);
- goto err_free_input;
+ return err;
}

err = input_register_device(input_dev);
if (err) {
dev_err(&pdev->dev, "Unable to register input device, %d\n",
err);
- goto err_free_irq;
+ cancel_delayed_work_sync(&onkey->work);
+ return err;
}

platform_set_drvdata(pdev, onkey);

return 0;
-
-err_free_irq:
- free_irq(irq, onkey);
- cancel_delayed_work_sync(&onkey->work);
-err_free_input:
- input_free_device(input_dev);
-
- return err;
}

static int da9055_onkey_remove(struct platform_device *pdev)
{
struct da9055_onkey *onkey = platform_get_drvdata(pdev);
- int irq = platform_get_irq_byname(pdev, "ONKEY");

- irq = regmap_irq_get_virq(onkey->da9055->irq_data, irq);
- free_irq(irq, onkey);
cancel_delayed_work_sync(&onkey->work);
input_unregister_device(onkey->input);

--
1.7.9.5

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