diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c
index eb0bff5..3b387b0 100644
--- a/drivers/usb/net/zd1201.c
+++ b/drivers/usb/net/zd1201.c
@@ -1905,6 +1905,9 @@
 {
 	struct zd1201 *zd = usb_get_intfdata(interface);
 
+	if (!zd || !zd->dev)
+		return -ENODEV;
+
 	netif_device_attach(zd->dev);
 
 	if (zd->was_enabled)