/* unmap and free memory */
        dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32), zr->stat_com, zr->p_sc);
        iounmap(zr->zr36057_mem);
+       pci_release_regions(pdev);
        pci_disable_device(zr->pci_dev);
        video_unregister_device(zr->video_dev);
 exit_free:
        snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "%s[%u]",
                 zr->card.name, zr->id);
 
+       err = pci_request_regions(pdev, ZR_DEVNAME(zr));
+       if (err)
+               goto zr_unreg;
+
        zr->zr36057_mem = pci_ioremap_bar(zr->pci_dev, 0);
        if (!zr->zr36057_mem) {
                pci_err(pdev, "%s() - ioremap failed\n", __func__);
-               goto zr_unreg;
+               goto zr_pci_release;
        }
 
        result = pci_request_irq(pdev, 0, zoran_irq, NULL, zr, ZR_DEVNAME(zr));
        pci_free_irq(zr->pci_dev, 0, zr);
 zr_unmap:
        iounmap(zr->zr36057_mem);
+zr_pci_release:
+       pci_release_regions(pdev);
 zr_unreg:
        v4l2_ctrl_handler_free(&zr->hdl);
        v4l2_device_unregister(&zr->v4l2_dev);