diff --git a/drivers/net/ac3200.c b/drivers/net/ac3200.c
index 91791ba..8a0af54 100644
--- a/drivers/net/ac3200.c
+++ b/drivers/net/ac3200.c
@@ -275,7 +275,7 @@
 	return 0;
 out2:
 	if (ei_status.reg0)
-		iounmap((void *)dev->mem_start);
+		iounmap(ei_status.mem);
 out1:
 	free_irq(dev->irq, dev);
 out: