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

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: default avatarKamal Heib <kamalheib1@gmail.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 7150c3d5

drivers/infiniband/core/uverbs_cmd.c

+2 −1
Original line number Diff line number Diff line
@@ -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);

drivers/infiniband/core/verbs.c

+3 −0
Original line number Diff line number Diff line
@@ -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)) {