diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 9932ba9a59f4..ce1c0b40bb9b 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1738,6 +1738,12 @@ int arm_iommu_map_sg(struct device *dev, struct scatterlist *sg,
 		total_length += s->length;
 
 	iova = __alloc_iova(mapping, total_length);
+
+	if (iova == DMA_ERROR_CODE) {
+		dev_err(dev, "Couldn't allocate iova for sg %p\n", sg);
+		return 0;
+	}
+
 	ret = iommu_map_sg(mapping->domain, iova, sg, nents, prot);
 	if (ret != total_length) {
 		__free_iova(mapping, iova, total_length);