diff --git a/drivers/of/device.c b/drivers/of/device.c
index 0d378c03e1a4..e1ae9e7104a1 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -107,7 +107,7 @@ void of_dma_configure(struct device *dev, struct device_node *np)
 	ret = of_dma_get_range(np, &dma_addr, &paddr, &size);
 	if (ret < 0) {
 		dma_addr = offset = 0;
-		size = dev->coherent_dma_mask + 1;
+		size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1);
 	} else {
 		offset = PFN_DOWN(paddr - dma_addr);