[PATCH] cciss: fix pci_driver.shutdown while device is still active

[PATCH] cciss: fix pci_driver.shutdown while device is still active

Fix an Oops in the cciss driver caused by system shutdown while a
filesystem on a cciss device is still active.  The cciss_remove_one
function only properly removes the device if the device has been cleanly
released by its users, which is not the case when the pci_driver.shutdown
method is called.

This patch adds a new cciss_shutdown function to better match the pattern
used by various SCSI drivers: deactivate device interrupts and flush
caches.  It also alters the cciss_remove_one function to match and readds
the __devexit annotation that was removed when cciss_remove_one was serving
as the pci_driver.shutdown method.

Signed-off-by: Gerald Britton <gbritton@alum.mit.edu>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>