int qeth_core_hardsetup_card(struct qeth_card *card)
{
	int retries = 3;
	int rc;

	QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
	atomic_set(&card->force_alloc_skb, 0);
	qeth_update_from_chp_desc(card);
retry:
	if (retries < 3)
		QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
			dev_name(&card->gdev->dev));
	ccw_device_set_offline(CARD_DDEV(card));
	ccw_device_set_offline(CARD_WDEV(card));
	ccw_device_set_offline(CARD_RDEV(card));
	rc = ccw_device_set_online(CARD_RDEV(card));
	if (rc)
		goto retriable;
	rc = ccw_device_set_online(CARD_WDEV(card));
	if (rc)
		goto retriable;
	rc = ccw_device_set_online(CARD_DDEV(card));
	if (rc)
		goto retriable;
	rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
retriable:
	if (rc == -ERESTARTSYS) {
		QETH_DBF_TEXT(SETUP, 2, "break1");
		return rc;
	} else if (rc) {
		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
		if (--retries < 0)
			goto out;
		else
			goto retry;
	}
	qeth_determine_capabilities(card);
	qeth_init_tokens(card);
	qeth_init_func_level(card);
	rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
	if (rc == -ERESTARTSYS) {
		QETH_DBF_TEXT(SETUP, 2, "break2");
		return rc;
	} else if (rc) {
		QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
		if (--retries < 0)
			goto out;
		else
			goto retry;
	}
	rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
	if (rc == -ERESTARTSYS) {
		QETH_DBF_TEXT(SETUP, 2, "break3");
		return rc;
	} else if (rc) {
		QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
		if (--retries < 0)
			goto out;
		else
			goto retry;
	}
	card->read_or_write_problem = 0;
	rc = qeth_mpc_initialize(card);
	if (rc) {
		QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
		goto out;
	}

	card->options.ipa4.supported_funcs = 0;
	card->options.adp.supported_funcs = 0;
	card->info.diagass_support = 0;
	qeth_query_ipassists(card, QETH_PROT_IPV4);
	if (qeth_is_supported(card, IPA_SETADAPTERPARMS))
		qeth_query_setadapterparms(card);
	if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST))
		qeth_query_setdiagass(card);
	return 0;
out:
	dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
		"an error on the device\n");
	QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
		dev_name(&card->gdev->dev), rc);
	return rc;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.