115 	int err = 0;  in do_pci_op()  local
151 			err = XEN_PCI_ERR_dev_not_found;  in do_pci_op()
170 	err = op->err;  in do_pci_op()
173 	return err;  in do_pci_op()
180 	int err = 0;  in pcifront_bus_read()  local
198 	err = do_pci_op(pdev, &op);  in pcifront_bus_read()
200 	if (likely(!err)) {  in pcifront_bus_read()
206 	} else if (err == -ENODEV) {  in pcifront_bus_read()
208 		err = 0;  in pcifront_bus_read()
212 	return errno_to_pcibios_err(err);  in pcifront_bus_read()
250 	int err;  in pci_frontend_enable_msix()  local
277 	err = do_pci_op(pdev, &op);  in pci_frontend_enable_msix()
279 	if (likely(!err)) {  in pci_frontend_enable_msix()
286 					err = -EINVAL;  in pci_frontend_enable_msix()
295 			err = op.value;  in pci_frontend_enable_msix()
298 		dev_err(&dev->dev, "enable msix get err %x\n", err);  in pci_frontend_enable_msix()
300 	return err;  in pci_frontend_enable_msix()
305 	int err;  in pci_frontend_disable_msix()  local
315 	err = do_pci_op(pdev, &op);  in pci_frontend_disable_msix()
318 	if (err)  in pci_frontend_disable_msix()
319 		dev_err(&dev->dev, "pci_disable_msix get err %x\n", err);  in pci_frontend_disable_msix()
324 	int err;  in pci_frontend_enable_msi()  local
334 	err = do_pci_op(pdev, &op);  in pci_frontend_enable_msi()
335 	if (likely(!err)) {  in pci_frontend_enable_msi()
340 			err = -EINVAL;  in pci_frontend_enable_msi()
346 		err = -EINVAL;  in pci_frontend_enable_msi()
348 	return err;  in pci_frontend_enable_msi()
353 	int err;  in pci_frontend_disable_msi()  local
363 	err = do_pci_op(pdev, &op);  in pci_frontend_disable_msi()
364 	if (err == XEN_PCI_ERR_dev_not_found) {  in pci_frontend_disable_msi()
369 	if (err)  in pci_frontend_disable_msi()
452 	int err = 0;  in pcifront_scan_root()  local
465 		err = -EINVAL;  in pcifront_scan_root()
476 		err = -ENOMEM;  in pcifront_scan_root()
491 		err = -ENOMEM;  in pcifront_scan_root()
503 	err = pcifront_scan_bus(pdev, domain, bus, b);  in pcifront_scan_root()
512 	return err;  in pcifront_scan_root()
518 	return err;  in pcifront_scan_root()
524 	int err;  in pcifront_rescan_root()  local
545 	err = pcifront_scan_bus(pdev, domain, bus, b);  in pcifront_rescan_root()
553 	return err;  in pcifront_rescan_root()
658 		(pci_channel_state_t)pdev->sh_info->aer_op.err;  in pcifront_do_aer()
666 	pdev->sh_info->aer_op.err = pcifront_common_process(cmd, pdev, state);  in pcifront_do_aer()
690 	int err = 0;  in pcifront_connect_and_init_dma()  local
698 		err = -EEXIST;  in pcifront_connect_and_init_dma()
702 	if (!err && !swiotlb_nr_tbl()) {  in pcifront_connect_and_init_dma()
703 		err = pci_xen_swiotlb_init_late();  in pcifront_connect_and_init_dma()
704 		if (err)  in pcifront_connect_and_init_dma()
707 	return err;  in pcifront_connect_and_init_dma()
788 	int err = 0;  in pcifront_publish_info()  local
792 	err = xenbus_grant_ring(pdev->xdev, pdev->sh_info, 1, &gref);  in pcifront_publish_info()
793 	if (err < 0)  in pcifront_publish_info()
798 	err = xenbus_alloc_evtchn(pdev->xdev, &pdev->evtchn);  in pcifront_publish_info()
799 	if (err)  in pcifront_publish_info()
802 	err = bind_evtchn_to_irqhandler(pdev->evtchn, pcifront_handler_aer,  in pcifront_publish_info()
805 	if (err < 0)  in pcifront_publish_info()
806 		return err;  in pcifront_publish_info()
808 	pdev->irq = err;  in pcifront_publish_info()
811 	err = xenbus_transaction_start(&trans);  in pcifront_publish_info()
812 	if (err) {  in pcifront_publish_info()
813 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_publish_info()
819 	err = xenbus_printf(trans, pdev->xdev->nodename,  in pcifront_publish_info()
821 	if (!err)  in pcifront_publish_info()
822 		err = xenbus_printf(trans, pdev->xdev->nodename,  in pcifront_publish_info()
824 	if (!err)  in pcifront_publish_info()
825 		err = xenbus_printf(trans, pdev->xdev->nodename,  in pcifront_publish_info()
828 	if (err) {  in pcifront_publish_info()
830 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_publish_info()
834 		err = xenbus_transaction_end(trans, 0);  in pcifront_publish_info()
835 		if (err == -EAGAIN)  in pcifront_publish_info()
837 		else if (err) {  in pcifront_publish_info()
838 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_publish_info()
850 	return err;  in pcifront_publish_info()
855 	int err = -EFAULT;  in pcifront_try_connect()  local
866 	err = pcifront_connect_and_init_dma(pdev);  in pcifront_try_connect()
867 	if (err && err != -EEXIST) {  in pcifront_try_connect()
868 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
873 	err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend,  in pcifront_try_connect()
875 	if (err == -ENOENT) {  in pcifront_try_connect()
876 		xenbus_dev_error(pdev->xdev, err,  in pcifront_try_connect()
878 		err = pcifront_scan_root(pdev, 0, 0);  in pcifront_try_connect()
879 		if (err) {  in pcifront_try_connect()
880 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
885 	} else if (err != 1) {  in pcifront_try_connect()
886 		if (err == 0)  in pcifront_try_connect()
887 			err = -EINVAL;  in pcifront_try_connect()
888 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
896 			err = -ENOMEM;  in pcifront_try_connect()
900 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str,  in pcifront_try_connect()
902 		if (err != 2) {  in pcifront_try_connect()
903 			if (err >= 0)  in pcifront_try_connect()
904 				err = -EINVAL;  in pcifront_try_connect()
905 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
910 		err = pcifront_scan_root(pdev, domain, bus);  in pcifront_try_connect()
911 		if (err) {  in pcifront_try_connect()
912 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_try_connect()
919 	err = xenbus_switch_state(pdev->xdev, XenbusStateConnected);  in pcifront_try_connect()
922 	return err;  in pcifront_try_connect()
927 	int err = 0;  in pcifront_try_disconnect()  local
941 	err = xenbus_switch_state(pdev->xdev, XenbusStateClosed);  in pcifront_try_disconnect()
945 	return err;  in pcifront_try_disconnect()
950 	int err = -EFAULT;  in pcifront_attach_devices()  local
959 	err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend,  in pcifront_attach_devices()
961 	if (err == -ENOENT) {  in pcifront_attach_devices()
962 		xenbus_dev_error(pdev->xdev, err,  in pcifront_attach_devices()
964 		err = pcifront_rescan_root(pdev, 0, 0);  in pcifront_attach_devices()
965 		if (err) {  in pcifront_attach_devices()
966 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
971 	} else if (err != 1) {  in pcifront_attach_devices()
972 		if (err == 0)  in pcifront_attach_devices()
973 			err = -EINVAL;  in pcifront_attach_devices()
974 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
982 			err = -ENOMEM;  in pcifront_attach_devices()
986 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str,  in pcifront_attach_devices()
988 		if (err != 2) {  in pcifront_attach_devices()
989 			if (err >= 0)  in pcifront_attach_devices()
990 				err = -EINVAL;  in pcifront_attach_devices()
991 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
996 		err = pcifront_rescan_root(pdev, domain, bus);  in pcifront_attach_devices()
997 		if (err) {  in pcifront_attach_devices()
998 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_attach_devices()
1008 	return err;  in pcifront_attach_devices()
1013 	int err = 0;  in pcifront_detach_devices()  local
1023 	err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, "num_devs", "%d",  in pcifront_detach_devices()
1025 	if (err != 1) {  in pcifront_detach_devices()
1026 		if (err >= 0)  in pcifront_detach_devices()
1027 			err = -EINVAL;  in pcifront_detach_devices()
1028 		xenbus_dev_fatal(pdev->xdev, err,  in pcifront_detach_devices()
1038 			err = -ENOMEM;  in pcifront_detach_devices()
1041 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str, "%d",  in pcifront_detach_devices()
1043 		if (err != 1)  in pcifront_detach_devices()
1052 			err = -ENOMEM;  in pcifront_detach_devices()
1055 		err = xenbus_scanf(XBT_NIL, pdev->xdev->otherend, str,  in pcifront_detach_devices()
1057 		if (err != 4) {  in pcifront_detach_devices()
1058 			if (err >= 0)  in pcifront_detach_devices()
1059 				err = -EINVAL;  in pcifront_detach_devices()
1060 			xenbus_dev_fatal(pdev->xdev, err,  in pcifront_detach_devices()
1083 	err = xenbus_switch_state(pdev->xdev, XenbusStateReconfiguring);  in pcifront_detach_devices()
1086 	return err;  in pcifront_detach_devices()
1127 	int err = 0;  in pcifront_xenbus_probe()  local
1131 		err = -ENOMEM;  in pcifront_xenbus_probe()
1132 		xenbus_dev_fatal(xdev, err,  in pcifront_xenbus_probe()
1137 	err = pcifront_publish_info(pdev);  in pcifront_xenbus_probe()
1138 	if (err)  in pcifront_xenbus_probe()
1142 	return err;  in pcifront_xenbus_probe()