114 	int err = 0;  in do_pci_op()  local
153 			err = XEN_PCI_ERR_dev_not_found;  in do_pci_op()
172 	err = op->err;  in do_pci_op()
175 	return err;  in do_pci_op()
182 	int err = 0;  in pcifront_bus_read()  local
200 	err = do_pci_op(pdev, &op);  in pcifront_bus_read()
202 	if (likely(!err)) {  in pcifront_bus_read()
208 	} else if (err == -ENODEV) {  in pcifront_bus_read()
210 		err = 0;  in pcifront_bus_read()
214 	return errno_to_pcibios_err(err);  in pcifront_bus_read()
252 	int err;  in pci_frontend_enable_msix()  local
279 	err = do_pci_op(pdev, &op);  in pci_frontend_enable_msix()
281 	if (likely(!err)) {  in pci_frontend_enable_msix()
288 					err = -EINVAL;  in pci_frontend_enable_msix()
297 			err = op.value;  in pci_frontend_enable_msix()
300 		dev_err(&dev->dev, "enable msix get err %x\n", err);  in pci_frontend_enable_msix()
302 	return err;  in pci_frontend_enable_msix()
307 	int err;  in pci_frontend_disable_msix()  local
317 	err = do_pci_op(pdev, &op);  in pci_frontend_disable_msix()
320 	if (err)  in pci_frontend_disable_msix()
321 		dev_err(&dev->dev, "pci_disable_msix get err %x\n", err);  in pci_frontend_disable_msix()
326 	int err;  in pci_frontend_enable_msi()  local
336 	err = do_pci_op(pdev, &op);  in pci_frontend_enable_msi()
337 	if (likely(!err)) {  in pci_frontend_enable_msi()
342 			err = -EINVAL;  in pci_frontend_enable_msi()
348 		err = -EINVAL;  in pci_frontend_enable_msi()
350 	return err;  in pci_frontend_enable_msi()
355 	int err;  in pci_frontend_disable_msi()  local
365 	err = do_pci_op(pdev, &op);  in pci_frontend_disable_msi()
366 	if (err == XEN_PCI_ERR_dev_not_found) {  in pci_frontend_disable_msi()
371 	if (err)  in pci_frontend_disable_msi()
453 	int err = 0;  in pcifront_scan_root()  local
461 		err = -EINVAL;  in pcifront_scan_root()
472 		err = -ENOMEM;  in pcifront_scan_root()
484 		err = -ENOMEM;  in pcifront_scan_root()
495 	err = pcifront_scan_bus(pdev, domain, bus, b);  in pcifront_scan_root()
504 	return err;  in pcifront_scan_root()
510 	return err;  in pcifront_scan_root()
516 	int err;  in pcifront_rescan_root()  local
537 	err = pcifront_scan_bus(pdev, domain, bus, b);  in pcifront_rescan_root()
545 	return err;  in pcifront_rescan_root()
650 		(pci_channel_state_t)pdev->sh_info->aer_op.err;  in pcifront_do_aer()
658 	pdev->sh_info->aer_op.err = pcifront_common_process(cmd, pdev, state);  in pcifront_do_aer()
682 	int err = 0;  in pcifront_connect_and_init_dma()  local
690 		err = -EEXIST;  in pcifront_connect_and_init_dma()
694 	if (!err && !swiotlb_nr_tbl()) {  in pcifront_connect_and_init_dma()
695 		err = pci_xen_swiotlb_init_late();  in pcifront_connect_and_init_dma()
696 		if (err)  in pcifront_connect_and_init_dma()
699 	return err;  in pcifront_connect_and_init_dma()
780 	int err = 0;  in pcifront_publish_info()  local
784 	err = xenbus_grant_ring(pdev->xdev, pdev->sh_info, 1, &gref);  in pcifront_publish_info()
785 	if (err < 0)  in pcifront_publish_info()
790 	err = xenbus_alloc_evtchn(pdev->xdev, &pdev->evtchn);  in pcifront_publish_info()
791 	if (err)  in pcifront_publish_info()
794 	err = bind_evtchn_to_irqhandler(pdev->evtchn, pcifront_handler_aer,  in pcifront_publish_info()
797 	if (err < 0)  in pcifront_publish_info()
798 		return err;  in pcifront_publish_info()
800 	pdev->irq = err;  in pcifront_publish_info()
803 	err = xenbus_transaction_start(&trans);  in pcifront_publish_info()
804 	if (err) {  in pcifront_publish_info()
805 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_publish_info()
811 	err = xenbus_printf(trans, pdev->xdev->nodename,  in pcifront_publish_info()
813 	if (!err)  in pcifront_publish_info()
814 		err = xenbus_printf(trans, pdev->xdev->nodename,  in pcifront_publish_info()
816 	if (!err)  in pcifront_publish_info()
817 		err = xenbus_printf(trans, pdev->xdev->nodename,  in pcifront_publish_info()
820 	if (err) {  in pcifront_publish_info()
822 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_publish_info()
826 		err = xenbus_transaction_end(trans, 0);  in pcifront_publish_info()
827 		if (err == -EAGAIN)  in pcifront_publish_info()
829 		else if (err) {  in pcifront_publish_info()
830 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_publish_info()
842 	return err;  in pcifront_publish_info()
847 	int err = -EFAULT;  in pcifront_try_connect()  local
858 	err = pcifront_connect_and_init_dma(pdev);  in pcifront_try_connect()
859 	if (err && err != -EEXIST) {  in pcifront_try_connect()
860 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
865 	err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend,  in pcifront_try_connect()
867 	if (err == -ENOENT) {  in pcifront_try_connect()
868 		xenbus_dev_error(pdev->xdev, err,  in pcifront_try_connect()
870 		err = pcifront_scan_root(pdev, 0, 0);  in pcifront_try_connect()
871 		if (err) {  in pcifront_try_connect()
872 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
877 	} else if (err != 1) {  in pcifront_try_connect()
878 		if (err == 0)  in pcifront_try_connect()
879 			err = -EINVAL;  in pcifront_try_connect()
880 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
888 			err = -ENOMEM;  in pcifront_try_connect()
892 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str,  in pcifront_try_connect()
894 		if (err != 2) {  in pcifront_try_connect()
895 			if (err >= 0)  in pcifront_try_connect()
896 				err = -EINVAL;  in pcifront_try_connect()
897 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
902 		err = pcifront_scan_root(pdev, domain, bus);  in pcifront_try_connect()
903 		if (err) {  in pcifront_try_connect()
904 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
911 	err = xenbus_switch_state(pdev->xdev, XenbusStateConnected);  in pcifront_try_connect()
914 	return err;  in pcifront_try_connect()
919 	int err = 0;  in pcifront_try_disconnect()  local
933 	err = xenbus_switch_state(pdev->xdev, XenbusStateClosed);  in pcifront_try_disconnect()
937 	return err;  in pcifront_try_disconnect()
942 	int err = -EFAULT;  in pcifront_attach_devices()  local
951 	err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend,  in pcifront_attach_devices()
953 	if (err == -ENOENT) {  in pcifront_attach_devices()
954 		xenbus_dev_error(pdev->xdev, err,  in pcifront_attach_devices()
956 		err = pcifront_rescan_root(pdev, 0, 0);  in pcifront_attach_devices()
957 		if (err) {  in pcifront_attach_devices()
958 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
963 	} else if (err != 1) {  in pcifront_attach_devices()
964 		if (err == 0)  in pcifront_attach_devices()
965 			err = -EINVAL;  in pcifront_attach_devices()
966 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
974 			err = -ENOMEM;  in pcifront_attach_devices()
978 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str,  in pcifront_attach_devices()
980 		if (err != 2) {  in pcifront_attach_devices()
981 			if (err >= 0)  in pcifront_attach_devices()
982 				err = -EINVAL;  in pcifront_attach_devices()
983 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
988 		err = pcifront_rescan_root(pdev, domain, bus);  in pcifront_attach_devices()
989 		if (err) {  in pcifront_attach_devices()
990 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
1000 	return err;  in pcifront_attach_devices()
1005 	int err = 0;  in pcifront_detach_devices()  local
1015 	err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, "num_devs", "%d",  in pcifront_detach_devices()
1017 	if (err != 1) {  in pcifront_detach_devices()
1018 		if (err >= 0)  in pcifront_detach_devices()
1019 			err = -EINVAL;  in pcifront_detach_devices()
1020 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_detach_devices()
1030 			err = -ENOMEM;  in pcifront_detach_devices()
1033 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str, "%d",  in pcifront_detach_devices()
1035 		if (err != 1)  in pcifront_detach_devices()
1044 			err = -ENOMEM;  in pcifront_detach_devices()
1047 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str,  in pcifront_detach_devices()
1049 		if (err != 4) {  in pcifront_detach_devices()
1050 			if (err >= 0)  in pcifront_detach_devices()
1051 				err = -EINVAL;  in pcifront_detach_devices()
1052 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_detach_devices()
1075 	err = xenbus_switch_state(pdev->xdev, XenbusStateReconfiguring);  in pcifront_detach_devices()
1078 	return err;  in pcifront_detach_devices()
1119 	int err = 0;  in pcifront_xenbus_probe()  local
1123 		err = -ENOMEM;  in pcifront_xenbus_probe()
1124 		xenbus_dev_fatal(xdev, err,  in pcifront_xenbus_probe()
1129 	err = pcifront_publish_info(pdev);  in pcifront_xenbus_probe()
1130 	if (err)  in pcifront_xenbus_probe()
1134 	return err;  in pcifront_xenbus_probe()