This bug was introduced back in bitkeeper days in 2003.  We use
"dcb->dev_mode" before it has been initialized.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NOliver Neukum <oliver@neukum.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>