Pass the right private data to device_create_with_groups from the
beginning, and remove the superflous call to dev_set_drvdata.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NJon Derrick <jonathan.derrick@intel.com>
Signed-off-by: NJens Axboe <axboe@fb.com>