CA-8806-blkback-dont-reconnect-on-unplug

diff -r 59b2dfc43a0e drivers/xen/blkback/xenbus.c
--- a/drivers/xen/blkback/xenbus.c	Wed Aug 01 10:23:47 2007 +0100
+++ b/drivers/xen/blkback/xenbus.c	Wed Aug 01 17:22:05 2007 +0100
@@ -507,7 +507,7 @@ static void frontend_changed(struct xenb
 		/* Ensure we connect even when two watches fire in 
 		   close successsion and we miss the intermediate value 
 		   of frontend_state. */
-		if (dev->state != XenbusStateConnected) {
+		if (dev->state != XenbusStateConnected && dev->state != XenbusStateClosing) {
 			err = connect_ring(be);
 			if (err)
 				break;