Commit f77c4839 authored by Guoqing Jiang's avatar Guoqing Jiang Committed by Jason Gunthorpe
Browse files

RDMA/rtrs-srv: Jump to dereg_mr label if allocate iu fails 

The rtrs_iu_free is called in rtrs_iu_alloc if memory is limited, so we
don't need to free the same iu again.

Fixes: 9cb83748 ("RDMA/rtrs: server: main functionality")
Link: https://lore.kernel.org/r/20201217141915.56989-7-jinpu.wang@cloud.ionos.com


Signed-off-by: default avatarGuoqing Jiang <guoqing.jiang@cloud.ionos.com>
Reviewed-by: default avatarGioh Kim <gi-oh.kim@cloud.ionos.com>
Signed-off-by: default avatarJack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent f47e4e3e

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

+1 −2
Original line number Diff line number Diff line
@@ -651,7 +651,7 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess) 
			if (!srv_mr->iu) {

				err = -ENOMEM;

				rtrs_err(ss, "rtrs_iu_alloc(), err: %d\n", err);

				goto free_iu;

				goto dereg_mr;

			}

		}

		/* Eventually dma addr for each chunk can be cached */
@@ -667,7 +667,6 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess) 
			srv_mr = &sess->mrs[mri];

			sgt = &srv_mr->sgt;

			mr = srv_mr->mr;

free_iu:

			rtrs_iu_free(srv_mr->iu, sess->s.dev->ib_dev, 1);

dereg_mr:

			ib_dereg_mr(mr);