diff options
| author | Kamal Heib <kamalheib1@gmail.com> | 2018-07-27 21:23:05 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-07-31 05:31:09 +0300 |
| commit | 0584c47bbc3b3149bfe544d4e090fb6d96addf6c (patch) | |
| tree | 996265242ada89b4d65c8e6767596a0a55bce552 | |
| parent | 7150c3d5544b12c96a053153db9e1cec07b0892d (diff) | |
| download | linux-0584c47bbc3b3149bfe544d4e090fb6d96addf6c.tar.xz | |
RDMA/core: Check for verbs callbacks before using them
Make sure the providers implement the verbs callbacks before calling
them, otherwise return -EOPNOTSUPP.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 3 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index d4c3bc042343..b2af4eeb7669 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2504,7 +2504,8 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file, goto out; resp.bad_wr = 0; - ret = srq->device->post_srq_recv(srq, wr, &bad_wr); + ret = srq->device->post_srq_recv ? + srq->device->post_srq_recv(srq, wr, &bad_wr) : -EOPNOTSUPP; uobj_put_obj_read(srq); diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index cde359d48d34..5b76c7ebfa02 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -479,6 +479,9 @@ static struct ib_ah *_rdma_create_ah(struct ib_pd *pd, { struct ib_ah *ah; + if (!pd->device->create_ah) + return ERR_PTR(-EOPNOTSUPP); + ah = pd->device->create_ah(pd, ah_attr, udata); if (!IS_ERR(ah)) { |