223 	int err;  in backend_create_xenvif()  local
231 	err = xenbus_scanf(XBT_NIL, dev->nodename, "handle", "%li", &handle);  in backend_create_xenvif()
232 	if (err != 1) {  in backend_create_xenvif()
233 		xenbus_dev_fatal(dev, err, "reading handle");  in backend_create_xenvif()
234 		return (err < 0) ? err : -EINVAL;  in backend_create_xenvif()
239 		err = PTR_ERR(vif);  in backend_create_xenvif()
240 		xenbus_dev_fatal(dev, err, "creating interface");  in backend_create_xenvif()
241 		return err;  in backend_create_xenvif()
401 	int err;  in read_xenbus_frontend_xdp()  local
403 	err = xenbus_scanf(XBT_NIL, dev->otherend,  in read_xenbus_frontend_xdp()
405 	if (err != 1) {  in read_xenbus_frontend_xdp()
548 	int err = 0;  in xen_register_credit_watch()  local
562 	err = register_xenbus_watch(&vif->credit_watch);  in xen_register_credit_watch()
563 	if (err) {  in xen_register_credit_watch()
570 	return err;  in xen_register_credit_watch()
596 	int err = 0;  in xen_register_mcast_ctrl_watch()  local
616 	err = register_xenbus_watch(&vif->mcast_ctrl_watch);  in xen_register_mcast_ctrl_watch()
617 	if (err) {  in xen_register_mcast_ctrl_watch()
625 	return err;  in xen_register_mcast_ctrl_watch()
689 	int err;  in connect_ctrl_ring()  local
691 	err = xenbus_scanf(XBT_NIL, dev->otherend,  in connect_ctrl_ring()
693 	if (err < 0)  in connect_ctrl_ring()
698 	err = xenbus_scanf(XBT_NIL, dev->otherend,  in connect_ctrl_ring()
700 	if (err < 0) {  in connect_ctrl_ring()
701 		xenbus_dev_fatal(dev, err,  in connect_ctrl_ring()
709 	err = xenvif_connect_ctrl(vif, ring_ref, evtchn);  in connect_ctrl_ring()
710 	if (err) {  in connect_ctrl_ring()
711 		xenbus_dev_fatal(dev, err,  in connect_ctrl_ring()
721 	return err;  in connect_ctrl_ring()
726 	int err;  in connect()  local
746 	err = xen_net_read_mac(dev, be->vif->fe_dev_addr);  in connect()
747 	if (err) {  in connect()
748 		xenbus_dev_fatal(dev, err, "parsing %s/mac", dev->nodename);  in connect()
757 	err = connect_ctrl_ring(be);  in connect()
758 	if (err) {  in connect()
759 		xenbus_dev_fatal(dev, err, "connecting control ring");  in connect()
782 		err = xenvif_init_queue(queue);  in connect()
783 		if (err) {  in connect()
791 			goto err;  in connect()
798 		err = connect_data_rings(be, queue);  in connect()
799 		if (err) {  in connect()
807 			goto err;  in connect()
826 	err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, NULL,  in connect()
829 	if (!err)  in connect()
836 err:  in connect()
856 	int err;  in connect_data_rings()  local
886 	err = xenbus_gather(XBT_NIL, xspath,  in connect_data_rings()
889 	if (err) {  in connect_data_rings()
890 		xenbus_dev_fatal(dev, err,  in connect_data_rings()
893 		goto err;  in connect_data_rings()
897 	err = xenbus_gather(XBT_NIL, xspath,  in connect_data_rings()
900 	if (err < 0) {  in connect_data_rings()
901 		err = xenbus_scanf(XBT_NIL, xspath,  in connect_data_rings()
903 		if (err < 0) {  in connect_data_rings()
904 			xenbus_dev_fatal(dev, err,  in connect_data_rings()
907 			goto err;  in connect_data_rings()
913 	err = xenvif_connect_data(queue, tx_ring_ref, rx_ring_ref,  in connect_data_rings()
915 	if (err) {  in connect_data_rings()
916 		xenbus_dev_fatal(dev, err,  in connect_data_rings()
920 		goto err;  in connect_data_rings()
923 	err = 0;  in connect_data_rings()
924 err: /* Regular return falls through with err == 0 */  in connect_data_rings()
926 	return err;  in connect_data_rings()
934 	int err;  in read_xenbus_vif_flags()  local
936 	err = xenbus_scanf(XBT_NIL, dev->otherend, "request-rx-copy", "%u",  in read_xenbus_vif_flags()
938 	if (err == -ENOENT) {  in read_xenbus_vif_flags()
939 		err = 0;  in read_xenbus_vif_flags()
942 	if (err < 0) {  in read_xenbus_vif_flags()
943 		xenbus_dev_fatal(dev, err, "reading %s/request-rx-copy",  in read_xenbus_vif_flags()
945 		return err;  in read_xenbus_vif_flags()
1006 	int err;  in netback_probe()  local
1023 		err = xenbus_transaction_start(&xbt);  in netback_probe()
1024 		if (err) {  in netback_probe()
1025 			xenbus_dev_fatal(dev, err, "starting transaction");  in netback_probe()
1029 		err = xenbus_printf(xbt, dev->nodename, "feature-sg", "%d", sg);  in netback_probe()
1030 		if (err) {  in netback_probe()
1035 		err = xenbus_printf(xbt, dev->nodename, "feature-gso-tcpv4",  in netback_probe()
1037 		if (err) {  in netback_probe()
1042 		err = xenbus_printf(xbt, dev->nodename, "feature-gso-tcpv6",  in netback_probe()
1044 		if (err) {  in netback_probe()
1050 		err = xenbus_printf(xbt, dev->nodename,  in netback_probe()
1053 		if (err) {  in netback_probe()
1059 		err = xenbus_printf(xbt, dev->nodename,  in netback_probe()
1061 		if (err) {  in netback_probe()
1067 		err = xenbus_printf(xbt, dev->nodename,  in netback_probe()
1070 		if (err) {  in netback_probe()
1078 		err = xenbus_printf(xbt, dev->nodename,  in netback_probe()
1080 		if (err) {  in netback_probe()
1086 		err = xenbus_printf(xbt, dev->nodename,  in netback_probe()
1088 		if (err) {  in netback_probe()
1093 		err = xenbus_printf(xbt, dev->nodename,  in netback_probe()
1096 		if (err) {  in netback_probe()
1101 		err = xenbus_transaction_end(xbt, 0);  in netback_probe()
1102 	} while (err == -EAGAIN);  in netback_probe()
1104 	if (err) {  in netback_probe()
1105 		xenbus_dev_fatal(dev, err, "completing transaction");  in netback_probe()
1112 	err = xenbus_printf(XBT_NIL, dev->nodename,  in netback_probe()
1115 	if (err)  in netback_probe()
1119 	err = xenbus_printf(XBT_NIL, dev->nodename,  in netback_probe()
1121 	if (err)  in netback_probe()
1124 	err = xenbus_printf(XBT_NIL, dev->nodename,  in netback_probe()
1127 	if (err)  in netback_probe()
1134 		err = PTR_ERR(script);  in netback_probe()
1135 		xenbus_dev_fatal(dev, err, "reading script");  in netback_probe()
1142 	err = backend_create_xenvif(be);  in netback_probe()
1143 	if (err)  in netback_probe()
1150 	xenbus_dev_fatal(dev, err, "%s", message);  in netback_probe()
1154 	return err;  in netback_probe()