linux-kernel - Re: [PATCH 07/35] media: staging: sun6i-isp: Remove redundant printk

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Date: Tue, 16 Apr 2024 10:37:14 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Ricardo Ribalda <ribalda@...omium.org>
Cc: Martin Tuma <martin.tuma@...iteqautomotive.com>,
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Subject: Re: [PATCH 07/35] media: staging: sun6i-isp: Remove redundant printk

On Mon, Apr 15, 2024 at 07:34:24PM +0000, Ricardo Ribalda wrote:
> platform_get_irq() already prints an error for us.
> 
> Found by cocci:
> drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c:389:2-9: line 389 is redundant because platform_get_irq() already prints an error
> 
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
> ---
>  drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c
> index 5c0a45394cba..a6424fe7023b 100644
> --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c
> +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c
> @@ -386,7 +386,6 @@ static int sun6i_isp_resources_setup(struct sun6i_isp_device *isp_dev,
>  
>  	irq = platform_get_irq(platform_dev, 0);
>  	if (irq < 0) {
> -		dev_err(dev, "failed to get interrupt\n");
>  		ret = -ENXIO;

This is more fall out from when irq functions used to return zero (16
years ago).  Instead of ret = -ENXIO, set ret = irq.

regards,
dan carpenter