Commit 102d2f70 authored by Guoqing Jiang's avatar Guoqing Jiang Committed by Leon Romanovsky
Browse files

RDMA/rtrs-srv: Correct the checking of ib_map_mr_sg 



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

Acked-by: default avatarJack Wang <jinpu.wang@ionos.com>
Signed-off-by: default avatarGuoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20221117101945.6317-4-guoqing.jiang@linux.dev


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 0f597ac6

drivers/infiniband/ulp/rtrs/rtrs-srv.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

		}