ublk_drv: move ublk_get_device_from_id into ublk_ctrl_uring_cmd
It is annoying for each control command handler to get/put ublk device and deal with failure. Control command handler is simplified a lot by moving ublk_get_device_from_id into ublk_ctrl_uring_cmd(). Reviewed-by: ZiyangZhang <ZiyangZhang@linux.alibaba.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20230106041711.914434-4-ming.lei@redhat.comSigned-off-by: Jens Axboe <axboe@kernel.dk>
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