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Re: [patch 1/2] iommu/mediatek: signedness bug in probe function

From Joerg Roedel <joro@8bytes.org>
Newsgroups linux.kernel
Subject Re: [patch 1/2] iommu/mediatek: signedness bug in probe function
Date 2016-03-02 15:00 +0100
Message-ID <r8ftO-8on-35@gated-at.bofh.it> (permalink)
References <r8c2R-6eY-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Mar 02, 2016 at 01:10:06PM +0300, Dan Carpenter wrote:
> "larb_nr" needs to be signed for the error handling to work.  "i" can
> be int as well.
> 
> Fixes: 0df4fabe208d ('iommu/mediatek: Add mt8173 IOMMU driver')
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> index 721ffdb..1a4022c 100644
> --- a/drivers/iommu/mtk_iommu.c
> +++ b/drivers/iommu/mtk_iommu.c
> @@ -578,7 +578,7 @@ static int mtk_iommu_probe(struct platform_device *pdev)
>  	struct resource         *res;
>  	struct component_match  *match = NULL;
>  	void                    *protect;
> -	unsigned int            i, larb_nr;
> +	int			i, larb_nr;
>  	int                     ret;
>  
>  	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);

I merged a similar fix from Andrzej Hajda yesterday.

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[patch 1/2] iommu/mediatek: signedness bug in probe function Dan Carpenter <dan.carpenter@oracle.com> - 2016-03-02 11:20 +0100
  Re: [patch 1/2] iommu/mediatek: signedness bug in probe function Joerg Roedel <joro@8bytes.org> - 2016-03-02 15:00 +0100

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