diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index f1547199026c..dad2f238ffbf 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1130,8 +1130,7 @@ 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);