nfsd4: initialize cb_per_client

Otherwise a callback that is aborted before it runs will result in a
list_del on an uninitialized list head.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2011-01-13 17:08:19 -05:00
commit 9ee1ba5402