only ctrl deletion calls nvme_auth_free, which was stopped prior in the
teardown stage, so there is no possibility that it should ever run when
nvme_auth_free is called. As a result, we can remove a local chap pointer
variable.
Reviewed-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NSagi Grimberg <sagi@grimberg.me>
Reviewed-by: NChaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>