vol: Initialise list before error exit when cloning

vol: Initialise list before error exit when cloning

The inode list wasn't being initialised before the first call into the
error handler. This makes it possible that we end up trying to discard
items from an uninitialised list, with all the chaos that would cause.
Fix things so that this list is correctly set up.

Reviewed-on: http://gerrit.openafs.org/5001
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit beda3b239a13903d4bcd9a5d91d5ff562962cb5a)

Change-Id: I3e3c4b8565e373f74bb95416e4c9b101d02fd78f
Reviewed-on: http://gerrit.openafs.org/5007
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>