diff mbox

Input: jornada720_ts: Switch to using Managed resources

Message ID 1406722183-22678-1-git-send-email-pramod.gurav@smartplayin.com (mailing list archive)
State New, archived
Headers show

Commit Message

Pramod Gurav July 30, 2014, 12:09 p.m. UTC
This switches the driver to using managed resources to simplify
error handling and to do away with remove function.

Also fixes some indentations by replacing spaces with tabs.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
---
 drivers/input/touchscreen/jornada720_ts.c |   62 ++++++++++-------------------
 1 file changed, 20 insertions(+), 42 deletions(-)

Comments

Paul Gortmaker July 30, 2014, 1:18 p.m. UTC | #1
On 14-07-30 08:09 AM, Pramod Gurav wrote:
> This switches the driver to using managed resources to simplify
> error handling and to do away with remove function.
> 
> Also fixes some indentations by replacing spaces with tabs.
> 
> CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> CC: Paul Gortmaker <paul.gortmaker@windriver.com>
> 
> Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
> ---
>  drivers/input/touchscreen/jornada720_ts.c |   62 ++++++++++-------------------
>  1 file changed, 20 insertions(+), 42 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
> index 7324c5c..0c23bba 100644
> --- a/drivers/input/touchscreen/jornada720_ts.c
> +++ b/drivers/input/touchscreen/jornada720_ts.c
> @@ -37,21 +37,21 @@ struct jornada_ts {
>  static void jornada720_ts_collect_data(struct jornada_ts *jornada_ts)
>  {
>  
> -    /* 3 low word X samples */
> -    jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
> -    jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
> -    jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
> +	/* 3 low word X samples */
> +	jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
> +	jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
> +	jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);

Please don't mix pure whitespace changes with technical changes.
While I can't fault you for wanting to get rid of the 4 space
tabs, it makes review more complicated when they are mixed in
a single commit.

P.
--

>  
> -    /* 3 low word Y samples */
> -    jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
> -    jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
> -    jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
> +	/* 3 low word Y samples */
> +	jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
> +	jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
> +	jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
>  
> -    /* combined x samples bits */
> -    jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
> +	/* combined x samples bits */
> +	jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
>  
> -    /* combined y samples bits */
> -    jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
> +	/* combined y samples bits */
> +	jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
>  }
>  
>  static int jornada720_ts_average(int coords[4])
> @@ -104,13 +104,10 @@ static int jornada720_ts_probe(struct platform_device *pdev)
>  	struct input_dev *input_dev;
>  	int error;
>  
> -	jornada_ts = kzalloc(sizeof(struct jornada_ts), GFP_KERNEL);
> -	input_dev = input_allocate_device();
> -
> -	if (!jornada_ts || !input_dev) {
> -		error = -ENOMEM;
> -		goto fail1;
> -	}
> +	jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL);
> +	input_dev = devm_input_allocate_device(&pdev->dev);
> +	if (!jornada_ts || !input_dev)
> +		return -ENOMEM;
>  
>  	platform_set_drvdata(pdev, jornada_ts);
>  
> @@ -126,36 +123,18 @@ static int jornada720_ts_probe(struct platform_device *pdev)
>  	input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
>  	input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
>  
> -	error = request_irq(IRQ_GPIO9,
> +	error = devm_request_irq(&pdev->dev, IRQ_GPIO9,
>  			jornada720_ts_interrupt,
>  			IRQF_TRIGGER_RISING,
>  			"HP7XX Touchscreen driver", pdev);
>  	if (error) {
> -		printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
> -		goto fail1;
> +		dev_err(&pdev->dev, "HP7XX TS : Unable to acquire irq!\n");
> +		return error;
>  	}
>  
>  	error = input_register_device(jornada_ts->dev);
>  	if (error)
> -		goto fail2;
> -
> -	return 0;
> -
> - fail2:
> -	free_irq(IRQ_GPIO9, pdev);
> - fail1:
> -	input_free_device(input_dev);
> -	kfree(jornada_ts);
> -	return error;
> -}
> -
> -static int jornada720_ts_remove(struct platform_device *pdev)
> -{
> -	struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
> -
> -	free_irq(IRQ_GPIO9, pdev);
> -	input_unregister_device(jornada_ts->dev);
> -	kfree(jornada_ts);
> +		return error;
>  
>  	return 0;
>  }
> @@ -165,7 +144,6 @@ MODULE_ALIAS("platform:jornada_ts");
>  
>  static struct platform_driver jornada720_ts_driver = {
>  	.probe		= jornada720_ts_probe,
> -	.remove		= jornada720_ts_remove,
>  	.driver		= {
>  		.name	= "jornada_ts",
>  		.owner	= THIS_MODULE,
> 
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pramod.gurav.etc@gmail.com July 30, 2014, 1:28 p.m. UTC | #2
On Wed, Jul 30, 2014 at 6:48 PM, Paul Gortmaker
<paul.gortmaker@windriver.com> wrote:
> On 14-07-30 08:09 AM, Pramod Gurav wrote:
>> This switches the driver to using managed resources to simplify
>> error handling and to do away with remove function.
>>
>> Also fixes some indentations by replacing spaces with tabs.
>>
>> CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
>> CC: Paul Gortmaker <paul.gortmaker@windriver.com>
>>
>> Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
>> ---
>>  drivers/input/touchscreen/jornada720_ts.c |   62 ++++++++++-------------------
>>  1 file changed, 20 insertions(+), 42 deletions(-)
>>
>> diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
>> index 7324c5c..0c23bba 100644
>> --- a/drivers/input/touchscreen/jornada720_ts.c
>> +++ b/drivers/input/touchscreen/jornada720_ts.c
>> @@ -37,21 +37,21 @@ struct jornada_ts {
>>  static void jornada720_ts_collect_data(struct jornada_ts *jornada_ts)
>>  {
>>
>> -    /* 3 low word X samples */
>> -    jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
>> -    jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
>> -    jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
>> +     /* 3 low word X samples */
>> +     jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
>> +     jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
>> +     jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
>
> Please don't mix pure whitespace changes with technical changes.
> While I can't fault you for wanting to get rid of the 4 space
> tabs, it makes review more complicated when they are mixed in
> a single commit.

Thanks for highlighting that. Will send two patches then.

>
> P.
> --
>
>>
>> -    /* 3 low word Y samples */
>> -    jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
>> -    jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
>> -    jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
>> +     /* 3 low word Y samples */
>> +     jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
>> +     jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
>> +     jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
>>
>> -    /* combined x samples bits */
>> -    jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
>> +     /* combined x samples bits */
>> +     jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
>>
>> -    /* combined y samples bits */
>> -    jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
>> +     /* combined y samples bits */
>> +     jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
>>  }
>>
>>  static int jornada720_ts_average(int coords[4])
>> @@ -104,13 +104,10 @@ static int jornada720_ts_probe(struct platform_device *pdev)
>>       struct input_dev *input_dev;
>>       int error;
>>
>> -     jornada_ts = kzalloc(sizeof(struct jornada_ts), GFP_KERNEL);
>> -     input_dev = input_allocate_device();
>> -
>> -     if (!jornada_ts || !input_dev) {
>> -             error = -ENOMEM;
>> -             goto fail1;
>> -     }
>> +     jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL);
>> +     input_dev = devm_input_allocate_device(&pdev->dev);
>> +     if (!jornada_ts || !input_dev)
>> +             return -ENOMEM;
>>
>>       platform_set_drvdata(pdev, jornada_ts);
>>
>> @@ -126,36 +123,18 @@ static int jornada720_ts_probe(struct platform_device *pdev)
>>       input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
>>       input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
>>
>> -     error = request_irq(IRQ_GPIO9,
>> +     error = devm_request_irq(&pdev->dev, IRQ_GPIO9,
>>                       jornada720_ts_interrupt,
>>                       IRQF_TRIGGER_RISING,
>>                       "HP7XX Touchscreen driver", pdev);
>>       if (error) {
>> -             printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
>> -             goto fail1;
>> +             dev_err(&pdev->dev, "HP7XX TS : Unable to acquire irq!\n");
>> +             return error;
>>       }
>>
>>       error = input_register_device(jornada_ts->dev);
>>       if (error)
>> -             goto fail2;
>> -
>> -     return 0;
>> -
>> - fail2:
>> -     free_irq(IRQ_GPIO9, pdev);
>> - fail1:
>> -     input_free_device(input_dev);
>> -     kfree(jornada_ts);
>> -     return error;
>> -}
>> -
>> -static int jornada720_ts_remove(struct platform_device *pdev)
>> -{
>> -     struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
>> -
>> -     free_irq(IRQ_GPIO9, pdev);
>> -     input_unregister_device(jornada_ts->dev);
>> -     kfree(jornada_ts);
>> +             return error;
>>
>>       return 0;
>>  }
>> @@ -165,7 +144,6 @@ MODULE_ALIAS("platform:jornada_ts");
>>
>>  static struct platform_driver jornada720_ts_driver = {
>>       .probe          = jornada720_ts_probe,
>> -     .remove         = jornada720_ts_remove,
>>       .driver         = {
>>               .name   = "jornada_ts",
>>               .owner  = THIS_MODULE,
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-input" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 7324c5c..0c23bba 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -37,21 +37,21 @@  struct jornada_ts {
 static void jornada720_ts_collect_data(struct jornada_ts *jornada_ts)
 {
 
-    /* 3 low word X samples */
-    jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
+	/* 3 low word X samples */
+	jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
 
-    /* 3 low word Y samples */
-    jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
+	/* 3 low word Y samples */
+	jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
 
-    /* combined x samples bits */
-    jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
+	/* combined x samples bits */
+	jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
 
-    /* combined y samples bits */
-    jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
+	/* combined y samples bits */
+	jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
 }
 
 static int jornada720_ts_average(int coords[4])
@@ -104,13 +104,10 @@  static int jornada720_ts_probe(struct platform_device *pdev)
 	struct input_dev *input_dev;
 	int error;
 
-	jornada_ts = kzalloc(sizeof(struct jornada_ts), GFP_KERNEL);
-	input_dev = input_allocate_device();
-
-	if (!jornada_ts || !input_dev) {
-		error = -ENOMEM;
-		goto fail1;
-	}
+	jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL);
+	input_dev = devm_input_allocate_device(&pdev->dev);
+	if (!jornada_ts || !input_dev)
+		return -ENOMEM;
 
 	platform_set_drvdata(pdev, jornada_ts);
 
@@ -126,36 +123,18 @@  static int jornada720_ts_probe(struct platform_device *pdev)
 	input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
 	input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
 
-	error = request_irq(IRQ_GPIO9,
+	error = devm_request_irq(&pdev->dev, IRQ_GPIO9,
 			jornada720_ts_interrupt,
 			IRQF_TRIGGER_RISING,
 			"HP7XX Touchscreen driver", pdev);
 	if (error) {
-		printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
-		goto fail1;
+		dev_err(&pdev->dev, "HP7XX TS : Unable to acquire irq!\n");
+		return error;
 	}
 
 	error = input_register_device(jornada_ts->dev);
 	if (error)
-		goto fail2;
-
-	return 0;
-
- fail2:
-	free_irq(IRQ_GPIO9, pdev);
- fail1:
-	input_free_device(input_dev);
-	kfree(jornada_ts);
-	return error;
-}
-
-static int jornada720_ts_remove(struct platform_device *pdev)
-{
-	struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
-
-	free_irq(IRQ_GPIO9, pdev);
-	input_unregister_device(jornada_ts->dev);
-	kfree(jornada_ts);
+		return error;
 
 	return 0;
 }
@@ -165,7 +144,6 @@  MODULE_ALIAS("platform:jornada_ts");
 
 static struct platform_driver jornada720_ts_driver = {
 	.probe		= jornada720_ts_probe,
-	.remove		= jornada720_ts_remove,
 	.driver		= {
 		.name	= "jornada_ts",
 		.owner	= THIS_MODULE,