diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 813556c60007de5c1e1afde58c721048b34fa58a..a7f42a17b5c708ba331b59874690f8a84cdab920 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1110,7 +1110,9 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 	__aac_shutdown(aac);
  out_unmap:
 	aac_fib_map_free(aac);
-	pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys);
+	if (aac->comm_addr)
+		pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
+		  aac->comm_phys);
 	kfree(aac->queues);
 	aac_adapter_ioremap(aac, 0);
 	kfree(aac->fibs);