iommu/mediatek: Fix handling of of_count_phandle_with_args result
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>
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index f3c160e..4b9ae64 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -578,8 +578,7 @@
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)