Commit 0584c47b authored by Kamal Heib's avatar Kamal Heib Committed by Jason Gunthorpe

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's avatarKamal Heib <>
Reviewed-by: default avatarLeon Romanovsky <>
Signed-off-by: default avatarJason Gunthorpe <>
parent 7150c3d5
......@@ -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;
......@@ -479,6 +479,9 @@ static struct ib_ah *_rdma_create_ah(struct ib_pd *pd,
struct ib_ah *ah;
if (!pd->device->create_ah)
ah = pd->device->create_ah(pd, ah_attr, udata);
if (!IS_ERR(ah)) {
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