diff options
| author | Guoqing Jiang <guoqing.jiang@linux.dev> | 2022-11-17 18:19:41 +0800 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2022-11-17 13:47:28 +0200 |
| commit | f5708e6699c230f64736107c90b63a53bdc0a613 (patch) | |
| tree | 7956068a1703fb4e25f03892ab6470673e06a27d /drivers/infiniband | |
| parent | 102d2f70ec0999a5cde181f1ccbe8a81cba45b10 (diff) | |
| download | linux-f5708e6699c230f64736107c90b63a53bdc0a613.tar.bz2 | |
RDMA/rtrs-clt: Correct the checking of ib_map_mr_sg
We should check with count, 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/20221117101945.6317-5-guoqing.jiang@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/rtrs/rtrs-clt.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c index 8546b8816524..be7c8480f947 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c @@ -1064,10 +1064,8 @@ static int rtrs_map_sg_fr(struct rtrs_clt_io_req *req, size_t count) /* Align the MR to a 4K page size to match the block virt boundary */ nr = ib_map_mr_sg(req->mr, req->sglist, count, NULL, SZ_4K); - if (nr < 0) - return nr; - if (nr < req->sg_cnt) - return -EINVAL; + if (nr != count) + return nr < 0 ? nr : -EINVAL; ib_update_fast_reg_key(req->mr, ib_inc_rkey(req->mr->rkey)); return nr; |