2 files changed, 7 insertions, 5 deletions

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 8f905089b72b..a6cbf7b808e6 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -934,8 +934,6 @@ static void blkfront_closing(struct xenbus_device *dev)
 
         spin_lock_irqsave(&blkif_io_lock, flags);
 
-        del_gendisk(info->gd);
-
         /* No more blkif_request(). */
         blk_stop_queue(info->rq);
 
@@ -949,6 +947,8 @@ static void blkfront_closing(struct xenbus_device *dev)
         blk_cleanup_queue(info->rq);
         info->rq = NULL;
 
+        del_gendisk(info->gd);
+
  out:
         xenbus_frontend_closed(dev);
 }
@@ -977,8 +977,10 @@ static void backend_changed(struct xenbus_device *dev,
                 break;
 
         case XenbusStateClosing:
-                if (info->gd == NULL)
-                        xenbus_dev_fatal(dev, -ENODEV, "gd is NULL");
+                if (info->gd == NULL) {
+                        xenbus_frontend_closed(dev);
+                        break;
+                }
                 bd = bdget_disk(info->gd, 0);
                 if (bd == NULL)
                         xenbus_dev_fatal(dev, -ENODEV, "bdget failed");
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 13929356135c..9b1624e0ddeb 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -587,7 +587,7 @@ static int viocd_probe(struct vio_dev *vdev, const struct vio_device_id *id)
         struct device_node *node = vdev->dev.archdata.of_node;
 
         deviceno = vdev->unit_address;
-        if (deviceno > VIOCD_MAX_CD)
+        if (deviceno >= VIOCD_MAX_CD)
                 return -ENODEV;
         if (!node)
                 return -ENODEV;