diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c
index 3f6d51d11374..2d7effe7990d 100644
--- a/drivers/pcmcia/cardbus.c
+++ b/drivers/pcmcia/cardbus.c
@@ -138,7 +138,7 @@ int read_cb_mem(struct pcmcia_socket * s, int space, u_int addr, u_int len, void
 
 	cs_dbg(s, 3, "read_cb_mem(%d, %#x, %u)\n", space, addr, len);
 
-	dev = pci_find_slot(s->cb_dev->subordinate->number, 0);
+	dev = pci_get_slot(s->cb_dev->subordinate, 0);
 	if (!dev)
 		goto fail;
 
@@ -152,6 +152,9 @@ int read_cb_mem(struct pcmcia_socket * s, int space, u_int addr, u_int len, void
 	}
 
 	res = dev->resource + space - 1;
+
+	pci_dev_put(dev);
+
 	if (!res->flags)
 		goto fail;