Re: [patch v2] PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check

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On Thu, May 26, 2016 at 3:45 PM, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> Smatch complains because platform_get_resource() returns NULL on error
> and not an error pointer so the check is wrong.  Julia Lawall pointed
> out that normally we don't check these, because devm_ioremap_resource()
> has a check for NULL.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Acked-by: MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx>

Queued in fixes branch to be sent with other fixes for RCx.

> ---
> v2: just remove the check
>
> diff --git a/drivers/devfreq/event/exynos-nocp.c b/drivers/devfreq/event/exynos-nocp.c
> index 6b6a5f3..a584140 100644
> --- a/drivers/devfreq/event/exynos-nocp.c
> +++ b/drivers/devfreq/event/exynos-nocp.c
> @@ -220,9 +220,6 @@ static int exynos_nocp_parse_dt(struct platform_device *pdev,
>
>         /* Maps the memory mapped IO to control nocp register */
>         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -       if (IS_ERR(res))
> -               return PTR_ERR(res);
> -
>         base = devm_ioremap_resource(dev, res);
>         if (IS_ERR(base))
>                 return PTR_ERR(base);
> --
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-- 
MyungJoo Ham, Ph.D.
Frontier CS Lab, S/W Center, Samsung Electronics
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