[PATCH] iommu/mediatek: Fix forever loop in error handling

[Dan Carpenter]

There is a typo so this loop does i++ where i-- was intended.  It will
result in looping until the kernel crashes.

Fixes: 26593928564c ("iommu/mediatek: Add error path for loop of mm_dts_parse")
Signed-off-by: Dan Carpenter <error27 at gmail.com>
---
 drivers/iommu/mtk_iommu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 3e46bc8b0714..2badd6acfb23 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1160,8 +1160,7 @@ static int mtk_iommu_mm_dts_parse(struct device *dev, struct component_match **m
 	return 0;
 
 err_larbdev_put:
-	/* id may be not linear mapping, loop whole the array */
-	for (i = MTK_LARB_NR_MAX - 1; i >= 0; i++) {
+	for (i = MTK_LARB_NR_MAX - 1; i >= 0; i--) {
 		if (!data->larb_imu[i].dev)
 			continue;
 		put_device(data->larb_imu[i].dev);
-- 
2.35.1