diff mbox series

[V2,3/8] RDMA/rtrs-srv: Correct the checking of ib_map_mr_sg

Message ID 20221117101945.6317-4-guoqing.jiang@linux.dev (mailing list archive)
State Accepted
Headers show
Series Misc patches for rtrs | expand

Commit Message

Guoqing Jiang Nov. 17, 2022, 10:19 a.m. UTC 
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>
---
 drivers/infiniband/ulp/rtrs/rtrs-srv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index b877dd57b6b9..581c850e71d6 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -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;
 		}