diff mbox

Input: da9052_onkey: Convert to managed resources

Message ID 20150727025616.GA4227@vaishali-Ideapad-Z570 (mailing list archive)
State New, archived
Headers show

Commit Message

Vaishali Thakkar July 27, 2015, 2:56 a.m. UTC
Use managed resource functions devm_input_allocate_device and
devm_kzalloc. To be compatible with the change, replace various
gotos by direct returns and drop unneeded labels.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
---
 drivers/input/misc/da9052_onkey.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

Comments

Steve Twiss Aug. 4, 2015, 12:52 p.m. UTC | #1
On 27 July 2015 03:56, Vaishali Thakkar wrote:

> Subject: [PATCH] Input: da9052_onkey: Convert to managed resources
> 
> Use managed resource functions devm_input_allocate_device and
> devm_kzalloc. To be compatible with the change, replace various
> gotos by direct returns and drop unneeded labels.
> 
> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
> ---
>  drivers/input/misc/da9052_onkey.c | 15 ++++-----------
>  1 file changed, 4 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/input/misc/da9052_onkey.c
> b/drivers/input/misc/da9052_onkey.c
> index 266e07f..3243fe9 100644
> --- a/drivers/input/misc/da9052_onkey.c
> +++ b/drivers/input/misc/da9052_onkey.c
> @@ -84,12 +84,11 @@ static int da9052_onkey_probe(struct
> platform_device *pdev)
>  		return -EINVAL;
>  	}
> 
> -	onkey = kzalloc(sizeof(*onkey), GFP_KERNEL);
> -	input_dev = input_allocate_device();
> +	onkey = devm_kzalloc(&pdev->dev, sizeof(*onkey), GFP_KERNEL);
> +	input_dev = devm_input_allocate_device(&pdev->dev);
>  	if (!onkey || !input_dev) {
>  		dev_err(&pdev->dev, "Failed to allocate memory\n");
> -		error = -ENOMEM;
> -		goto err_free_mem;
> +		return -ENOMEM;
>  	}
> 
>  	onkey->input = input_dev;
> @@ -108,7 +107,7 @@ static int da9052_onkey_probe(struct
> platform_device *pdev)
>  	if (error < 0) {
>  		dev_err(onkey->da9052->dev,
>  			"Failed to register ONKEY IRQ: %d\n", error);
> -		goto err_free_mem;
> +		return error;
>  	}
> 
>  	error = input_register_device(onkey->input);
> @@ -124,9 +123,6 @@ static int da9052_onkey_probe(struct
> platform_device *pdev)
>  err_free_irq:
>  	da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
>  	cancel_delayed_work_sync(&onkey->work);
> -err_free_mem:
> -	input_free_device(input_dev);
> -	kfree(onkey);
> 
>  	return error;
>  }
> @@ -138,9 +134,6 @@ static int da9052_onkey_remove(struct
> platform_device *pdev)
>  	da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
>  	cancel_delayed_work_sync(&onkey->work);
> 
> -	input_unregister_device(onkey->input);
> -	kfree(onkey);
> -
>  	return 0;
>  }
> 
> --
> 1.9.1

Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>

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Dmitry Torokhov Oct. 2, 2015, 5:43 p.m. UTC | #2
On Tue, Aug 04, 2015 at 12:52:53PM +0000, Opensource [Steve Twiss] wrote:
> On 27 July 2015 03:56, Vaishali Thakkar wrote:
> 
> > Subject: [PATCH] Input: da9052_onkey: Convert to managed resources
> > 
> > Use managed resource functions devm_input_allocate_device and
> > devm_kzalloc. To be compatible with the change, replace various
> > gotos by direct returns and drop unneeded labels.
> > 
> > Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
> > ---
> >  drivers/input/misc/da9052_onkey.c | 15 ++++-----------
> >  1 file changed, 4 insertions(+), 11 deletions(-)
> > 
> > diff --git a/drivers/input/misc/da9052_onkey.c
> > b/drivers/input/misc/da9052_onkey.c
> > index 266e07f..3243fe9 100644
> > --- a/drivers/input/misc/da9052_onkey.c
> > +++ b/drivers/input/misc/da9052_onkey.c
> > @@ -84,12 +84,11 @@ static int da9052_onkey_probe(struct
> > platform_device *pdev)
> >  		return -EINVAL;
> >  	}
> > 
> > -	onkey = kzalloc(sizeof(*onkey), GFP_KERNEL);
> > -	input_dev = input_allocate_device();
> > +	onkey = devm_kzalloc(&pdev->dev, sizeof(*onkey), GFP_KERNEL);
> > +	input_dev = devm_input_allocate_device(&pdev->dev);
> >  	if (!onkey || !input_dev) {
> >  		dev_err(&pdev->dev, "Failed to allocate memory\n");
> > -		error = -ENOMEM;
> > -		goto err_free_mem;
> > +		return -ENOMEM;
> >  	}
> > 
> >  	onkey->input = input_dev;
> > @@ -108,7 +107,7 @@ static int da9052_onkey_probe(struct
> > platform_device *pdev)
> >  	if (error < 0) {
> >  		dev_err(onkey->da9052->dev,
> >  			"Failed to register ONKEY IRQ: %d\n", error);
> > -		goto err_free_mem;
> > +		return error;
> >  	}
> > 
> >  	error = input_register_device(onkey->input);
> > @@ -124,9 +123,6 @@ static int da9052_onkey_probe(struct
> > platform_device *pdev)
> >  err_free_irq:
> >  	da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
> >  	cancel_delayed_work_sync(&onkey->work);
> > -err_free_mem:
> > -	input_free_device(input_dev);
> > -	kfree(onkey);
> > 
> >  	return error;
> >  }
> > @@ -138,9 +134,6 @@ static int da9052_onkey_remove(struct
> > platform_device *pdev)
> >  	da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
> >  	cancel_delayed_work_sync(&onkey->work);
> > 
> > -	input_unregister_device(onkey->input);
> > -	kfree(onkey);
> > -
> >  	return 0;
> >  }
> > 
> > --
> > 1.9.1
> 
> Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
> 

I prefer not to mix stategies of managing resources in a single driver.
I.e. either everything is devm* or nothing is.

Thanks.
Vaishali Thakkar Oct. 2, 2015, 6:35 p.m. UTC | #3
On Fri, Oct 2, 2015 at 11:13 PM, Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
> On Tue, Aug 04, 2015 at 12:52:53PM +0000, Opensource [Steve Twiss] wrote:
>> On 27 July 2015 03:56, Vaishali Thakkar wrote:
>>
>> > Subject: [PATCH] Input: da9052_onkey: Convert to managed resources
>> >
>> > Use managed resource functions devm_input_allocate_device and
>> > devm_kzalloc. To be compatible with the change, replace various
>> > gotos by direct returns and drop unneeded labels.
>> >
>> > Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
>> > ---
>> >  drivers/input/misc/da9052_onkey.c | 15 ++++-----------
>> >  1 file changed, 4 insertions(+), 11 deletions(-)
>> >
>> > diff --git a/drivers/input/misc/da9052_onkey.c
>> > b/drivers/input/misc/da9052_onkey.c
>> > index 266e07f..3243fe9 100644
>> > --- a/drivers/input/misc/da9052_onkey.c
>> > +++ b/drivers/input/misc/da9052_onkey.c
>> > @@ -84,12 +84,11 @@ static int da9052_onkey_probe(struct
>> > platform_device *pdev)
>> >             return -EINVAL;
>> >     }
>> >
>> > -   onkey = kzalloc(sizeof(*onkey), GFP_KERNEL);
>> > -   input_dev = input_allocate_device();
>> > +   onkey = devm_kzalloc(&pdev->dev, sizeof(*onkey), GFP_KERNEL);
>> > +   input_dev = devm_input_allocate_device(&pdev->dev);
>> >     if (!onkey || !input_dev) {
>> >             dev_err(&pdev->dev, "Failed to allocate memory\n");
>> > -           error = -ENOMEM;
>> > -           goto err_free_mem;
>> > +           return -ENOMEM;
>> >     }
>> >
>> >     onkey->input = input_dev;
>> > @@ -108,7 +107,7 @@ static int da9052_onkey_probe(struct
>> > platform_device *pdev)
>> >     if (error < 0) {
>> >             dev_err(onkey->da9052->dev,
>> >                     "Failed to register ONKEY IRQ: %d\n", error);
>> > -           goto err_free_mem;
>> > +           return error;
>> >     }
>> >
>> >     error = input_register_device(onkey->input);
>> > @@ -124,9 +123,6 @@ static int da9052_onkey_probe(struct
>> > platform_device *pdev)
>> >  err_free_irq:
>> >     da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
>> >     cancel_delayed_work_sync(&onkey->work);
>> > -err_free_mem:
>> > -   input_free_device(input_dev);
>> > -   kfree(onkey);
>> >
>> >     return error;
>> >  }
>> > @@ -138,9 +134,6 @@ static int da9052_onkey_remove(struct
>> > platform_device *pdev)
>> >     da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
>> >     cancel_delayed_work_sync(&onkey->work);
>> >
>> > -   input_unregister_device(onkey->input);
>> > -   kfree(onkey);
>> > -
>> >     return 0;
>> >  }
>> >
>> > --
>> > 1.9.1
>>
>> Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
>>
>
> I prefer not to mix stategies of managing resources in a single driver.
> I.e. either everything is devm* or nothing is.

Yeah, I understand. I guess this is an old patch. You can drop it.

Thanks

> Thanks.
>
> --
> Dmitry
diff mbox

Patch

diff --git a/drivers/input/misc/da9052_onkey.c b/drivers/input/misc/da9052_onkey.c
index 266e07f..3243fe9 100644
--- a/drivers/input/misc/da9052_onkey.c
+++ b/drivers/input/misc/da9052_onkey.c
@@ -84,12 +84,11 @@  static int da9052_onkey_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	onkey = kzalloc(sizeof(*onkey), GFP_KERNEL);
-	input_dev = input_allocate_device();
+	onkey = devm_kzalloc(&pdev->dev, sizeof(*onkey), GFP_KERNEL);
+	input_dev = devm_input_allocate_device(&pdev->dev);
 	if (!onkey || !input_dev) {
 		dev_err(&pdev->dev, "Failed to allocate memory\n");
-		error = -ENOMEM;
-		goto err_free_mem;
+		return -ENOMEM;
 	}
 
 	onkey->input = input_dev;
@@ -108,7 +107,7 @@  static int da9052_onkey_probe(struct platform_device *pdev)
 	if (error < 0) {
 		dev_err(onkey->da9052->dev,
 			"Failed to register ONKEY IRQ: %d\n", error);
-		goto err_free_mem;
+		return error;
 	}
 
 	error = input_register_device(onkey->input);
@@ -124,9 +123,6 @@  static int da9052_onkey_probe(struct platform_device *pdev)
 err_free_irq:
 	da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
 	cancel_delayed_work_sync(&onkey->work);
-err_free_mem:
-	input_free_device(input_dev);
-	kfree(onkey);
 
 	return error;
 }
@@ -138,9 +134,6 @@  static int da9052_onkey_remove(struct platform_device *pdev)
 	da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
 	cancel_delayed_work_sync(&onkey->work);
 
-	input_unregister_device(onkey->input);
-	kfree(onkey);
-
 	return 0;
 }