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iommu/mediatek: Fix handling of of_count_phandle_with_args result

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The function can return negative value so it should be assigned to signed
variable. The patch changes also type of related i variable to make code
more compact and coherent.

The problem has been detected using patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Andrzej Hajda 2016-03-01 10:36:23 +01:00 committed by Joerg Roedel
parent fd99f796a2
commit 0b6c0ad3cf
1 changed files with 1 additions and 2 deletions
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3
drivers/iommu/mtk_iommu.c
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@ -578,8 +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 ret;
int i, larb_nr, ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)