--- x/drivers/nfc/pn533/usb.c
+++ y/drivers/nfc/pn533/usb.c
@@ -175,6 +175,7 @@ static int pn533_usb_send_frame(struct p
 	print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1,
 			     out->data, out->len, false);
 
+	arg.phy = phy;
 	init_completion(&arg.done);
 	cntx = phy->out_urb->context;
 	phy->out_urb->context = &arg;