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ublk: return unsigned from ublk_{,un}map_io()

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ublk_map_io() and ublk_unmap_io() never return negative values, and
their return values are stored in variables of type unsigned. Clarify
that they can't fail by making their return types unsigned.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Caleb Sander Mateos
2025-11-07 21:23:16 -07:00
committed by Jens Axboe
parent 6b0a29933f
commit 727a440278
1 changed files with 4 additions and 3 deletions
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7
drivers/block/ublk_drv.c
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@@ -963,8 +963,9 @@ static inline bool ublk_need_unmap_req(const struct request *req)
(req_op(req) == REQ_OP_READ || req_op(req) == REQ_OP_DRV_IN);
}
static int ublk_map_io(const struct ublk_queue *ubq, const struct request *req,
const struct ublk_io *io)
static unsigned int ublk_map_io(const struct ublk_queue *ubq,
const struct request *req,
const struct ublk_io *io)
{
const unsigned int rq_bytes = blk_rq_bytes(req);
@@ -986,7 +987,7 @@ static int ublk_map_io(const struct ublk_queue *ubq, const struct request *req,
return rq_bytes;
}
static int ublk_unmap_io(bool need_map,
static unsigned int ublk_unmap_io(bool need_map,
const struct request *req,
const struct ublk_io *io)
{