diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 7f5e21b..c2a4e64 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -647,7 +647,7 @@
 	 * the damage, or panic when the transfer is too big.
 	 */
 	printk(KERN_ERR "DMA: Out of SW-IOMMU space for %zu bytes at "
-	       "device %s\n", size, dev ? dev->bus_id : "?");
+	       "device %s\n", size, dev ? dev_name(dev) : "?");
 
 	if (size > io_tlb_overflow && do_panic) {
 		if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL)