Make sure the providers implement the verbs callbacks before calling
them, otherwise return -EOPNOTSUPP.
Signed-off-by: Kamal Heib <kamalheib1@xxxxxxxxx>
Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/uverbs_cmd.c | 3 ++-
drivers/infiniband/core/verbs.c | 3 +++
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 38d7de3f9b2f..a2cfa7908d7e 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2501,7 +2501,8 @@ 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)) {
--
2.14.4
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