linux-kernel - [patch 1/2] iommu/mediatek: signedness bug in probe function

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Message-ID: <20160302101006.GF5533@mwanda>
Date:	Wed, 2 Mar 2016 13:10:06 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Joerg Roedel <joro@...tes.org>, Yong Wu <yong.wu@...iatek.com>
Cc:	Matthias Brugger <matthias.bgg@...il.com>,
	iommu@...ts.linux-foundation.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch 1/2] iommu/mediatek: signedness bug in probe function

"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@...cle.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);