static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
{
	int ret;
	struct dvb_usb_device *d = adap_to_d(adap);

	dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);

	ret = dvb_register_adapter(&adap->dvb_adap, d->name, d->props->owner,
			&d->udev->dev, d->props->adapter_nr);
	if (ret < 0) {
		dev_dbg(&d->udev->dev, "%s: dvb_register_adapter() failed=%d\n",
				__func__, ret);
		goto err_dvb_register_adapter;
	}

	adap->dvb_adap.priv = adap;

	ret = dvb_usbv2_media_device_init(adap);
	if (ret < 0) {
		dev_dbg(&d->udev->dev, "%s: dvb_usbv2_media_device_init() failed=%d\n",
				__func__, ret);
		goto err_dvb_register_mc;
	}

	if (d->props->read_mac_address) {
		ret = d->props->read_mac_address(adap,
				adap->dvb_adap.proposed_mac);
		if (ret < 0)
			goto err_dvb_dmx_init;

		dev_info(&d->udev->dev, "%s: MAC address: %pM\n",
				KBUILD_MODNAME, adap->dvb_adap.proposed_mac);
	}

	adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
	adap->demux.priv             = adap;
	adap->demux.filternum        = 0;
	adap->demux.filternum        = adap->max_feed_count;
	adap->demux.feednum          = adap->demux.filternum;
	adap->demux.start_feed       = dvb_usb_start_feed;
	adap->demux.stop_feed        = dvb_usb_stop_feed;
	adap->demux.write_to_decoder = NULL;
	ret = dvb_dmx_init(&adap->demux);
	if (ret < 0) {
		dev_err(&d->udev->dev, "%s: dvb_dmx_init() failed=%d\n",
				KBUILD_MODNAME, ret);
		goto err_dvb_dmx_init;
	}

	adap->dmxdev.filternum       = adap->demux.filternum;
	adap->dmxdev.demux           = &adap->demux.dmx;
	adap->dmxdev.capabilities    = 0;
	ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap);
	if (ret < 0) {
		dev_err(&d->udev->dev, "%s: dvb_dmxdev_init() failed=%d\n",
				KBUILD_MODNAME, ret);
		goto err_dvb_dmxdev_init;
	}

	ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx);
	if (ret < 0) {
		dev_err(&d->udev->dev, "%s: dvb_net_init() failed=%d\n",
				KBUILD_MODNAME, ret);
		goto err_dvb_net_init;
	}

	return 0;
err_dvb_net_init:
	dvb_dmxdev_release(&adap->dmxdev);
err_dvb_dmxdev_init:
	dvb_dmx_release(&adap->demux);
err_dvb_dmx_init:
	dvb_usbv2_media_device_unregister(adap);
err_dvb_register_mc:
	dvb_unregister_adapter(&adap->dvb_adap);
err_dvb_register_adapter:
	adap->dvb_adap.priv = NULL;
	return ret;
}

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.