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RDMA/rtrs-srv: Correct the checking of ib_map_mr_sg

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We should check with nr_sgt, also the only successful case is that
all sg elements are mapped, so make it explicitly.

Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20221117101945.6317-4-guoqing.jiang@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Guoqing Jiang 2022-11-17 18:19:40 +08:00 committed by Leon Romanovsky
parent 0f597ac618
commit 102d2f70ec
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/ulp/rtrs/rtrs-srv.c
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@ -622,7 +622,7 @@ static int map_cont_bufs(struct rtrs_srv_path *srv_path)
}
nr = ib_map_mr_sg(mr, sgt->sgl, nr_sgt,
NULL, max_chunk_size);
if (nr < 0 || nr < sgt->nents) {
if (nr != nr_sgt) {
err = nr < 0 ? nr : -EINVAL;
goto dereg_mr;
}