Re: [PATCH 05/14] [media] atmel-isi: Update error check for unsignedvariables

From: Guennadi Liakhovetski
Date: Sat Nov 17 2012 - 18:16:10 EST


On Fri, 16 Nov 2012, Tushar Behera wrote:

> Checking '< 0' for unsigned variables always returns false. For error
> codes, use IS_ERR_VALUE() instead.

Wouldn't just changing "irq" type to "int" also work? I think that would
be a more straight-forward solution. If however there are strong arguments
against that, I'm fine with this fix too.

Thanks
Guennadi

>
> CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
> CC: linux-media@xxxxxxxxxxxxxxx
> Signed-off-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
> ---
> drivers/media/platform/soc_camera/atmel-isi.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
> index 6274a91..5bd65df 100644
> --- a/drivers/media/platform/soc_camera/atmel-isi.c
> +++ b/drivers/media/platform/soc_camera/atmel-isi.c
> @@ -1020,7 +1020,7 @@ static int __devinit atmel_isi_probe(struct platform_device *pdev)
> isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS);
>
> irq = platform_get_irq(pdev, 0);
> - if (irq < 0) {
> + if (IS_ERR_VALUE(irq)) {
> ret = irq;
> goto err_req_irq;
> }
> --
> 1.7.4.1
>
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---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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