diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 47302b637cc0..42cffb0ee5e2 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -264,6 +264,10 @@ void of_iommu_get_resv_regions(struct device *dev, struct list_head *list)
 					prot |= IOMMU_CACHE;
 
 				maps = of_translate_dma_region(np, maps, &iova, &length);
+				if (length == 0) {
+					dev_warn(dev, "Cannot reserve IOVA region of 0 size\n");
+					continue;
+				}
 				type = iommu_resv_region_get_type(dev, &phys, iova, length);
 
 				region = iommu_alloc_resv_region(iova, length, prot, type,