diff --git a/drivers/pcmcia/vrc4171_card.c b/drivers/pcmcia/vrc4171_card.c
index 75806be344e5..d98a08612492 100644
--- a/drivers/pcmcia/vrc4171_card.c
+++ b/drivers/pcmcia/vrc4171_card.c
@@ -246,6 +246,7 @@ static int pccard_init(struct pcmcia_socket *sock)
 	socket = &vrc4171_sockets[slot];
 	socket->csc_irq = search_nonuse_irq();
 	socket->io_irq = search_nonuse_irq();
+	spin_lock_init(&socket->lock);
 
 	return 0;
 }