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xen-netfront: handle backend CLOSED without CLOSING
[linux-block.git]
/
drivers
/
net
/
xen-netfront.c
diff --git
a/drivers/net/xen-netfront.c
b/drivers/net/xen-netfront.c
index ff04d4f95baa3561fbf42899bf95f69eab28412f..f9daa9e183f216e7114a1d1b604fe4fc6b6d3861 100644
(file)
--- a/
drivers/net/xen-netfront.c
+++ b/
drivers/net/xen-netfront.c
@@
-1832,7
+1832,6
@@
static void netback_changed(struct xenbus_device *dev,
case XenbusStateReconfiguring:
case XenbusStateReconfigured:
case XenbusStateUnknown:
case XenbusStateReconfiguring:
case XenbusStateReconfigured:
case XenbusStateUnknown:
- case XenbusStateClosed:
break;
case XenbusStateInitWait:
break;
case XenbusStateInitWait:
@@
-1847,6
+1846,10
@@
static void netback_changed(struct xenbus_device *dev,
netdev_notify_peers(netdev);
break;
netdev_notify_peers(netdev);
break;
+ case XenbusStateClosed:
+ if (dev->state == XenbusStateClosed)
+ break;
+ /* Missed the backend's CLOSING state -- fallthrough */
case XenbusStateClosing:
xenbus_frontend_closed(dev);
break;
case XenbusStateClosing:
xenbus_frontend_closed(dev);
break;