xen/blkfront: Make sure that the device is fully ready before allowing release.

[ linux-2.6.18-xen changeset c1c57fea77e9 ]

Signed-off-by: Wim Colgate <wim@xensource.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index da3fee6bf530..a39b4b2b0c50 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -997,7 +997,7 @@ static int blkif_release(struct inode *inode, struct file *filep)
                 struct xenbus_device *dev = info->xbdev;
                 enum xenbus_state state = xenbus_read_driver_state(dev->otherend);
 
-                if (state == XenbusStateClosing)
+                if (state == XenbusStateClosing && info->is_ready)
                         blkfront_closing(dev);
         }
         return 0;