linux-kernel - Re: [PATCH] extcon: adc-jack: Fix checking return value of request_any_context

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Date:	Sun, 30 Sep 2012 09:37:29 +0530
From:	anish kumar <anish198519851985@...il.com>
To:	Axel Lin <axel.lin@...ics.com>
Cc:	linux-kernel@...r.kernel.org,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	anish kumar <anish.singh@...sung.com>
Subject: Re: [PATCH] extcon: adc-jack: Fix checking return value of
 request_any_context_irq

On Fri, 2012-09-28 at 07:36 +0800, Axel Lin wrote:
> On failure, request_any_context_irq() returns a negative value.
> On success, it returns either IRQC_IS_HARDIRQ or IRQC_IS_NESTED.
> 
> Also ensure adc_jack_probe() return 0 on success.
this patch makes sense.
> 
> Signed-off-by: Axel Lin <axel.lin@...ics.com>
> ---
>  drivers/extcon/extcon-adc-jack.c |    5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
> index 725eb5a..2cc6bec 100644
> --- a/drivers/extcon/extcon-adc-jack.c
> +++ b/drivers/extcon/extcon-adc-jack.c
> @@ -161,13 +161,12 @@ static int __devinit adc_jack_probe(struct platform_device *pdev)
>  	err = request_any_context_irq(data->irq, adc_jack_irq_thread,
>  			pdata->irq_flags, pdata->name, data);
>  
> -	if (err) {
> +	if (err < 0) {
>  		dev_err(&pdev->dev, "error: irq %d\n", data->irq);
> -		err = -EINVAL;
>  		goto err_irq;
>  	}
>  
> -	goto out;
> +	return 0;
>  
>  err_irq:
>  	extcon_dev_unregister(&data->edev);


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