diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2021-05-09 14:39:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-26 12:05:14 +0200 |
| commit | a19bb4c0566c7227fe655fc67cb0131400278aa8 (patch) | |
| tree | 4052d45e5f6bee3bb76a0b3aeb5a7e4f485bca21 /drivers/infiniband/sw | |
| parent | a03676848886965e00b841c2db94f9da20cc2d9e (diff) | |
RDMA/siw: Properly check send and receive CQ pointers
[ Upstream commit a568814a55a0e82bbc7c7b51333d0c38e8fb5520 ]
The check for the NULL of pointer received from container_of() is
incorrect by definition as it points to some offset from NULL.
Change such check with proper NULL check of SIW QP attributes.
Fixes: 303ae1cdfdf7 ("rdma/siw: application interface")
Link: https://lore.kernel.org/r/a7535a82925f6f4c1f062abaa294f3ae6e54bdd2.1620560310.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/infiniband/sw')
| -rw-r--r-- | drivers/infiniband/sw/siw/siw_verbs.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c index 2c3704f0f10f..daa71469269e 100644 --- a/drivers/infiniband/sw/siw/siw_verbs.c +++ b/drivers/infiniband/sw/siw/siw_verbs.c @@ -314,7 +314,6 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd, struct siw_ucontext *uctx = rdma_udata_to_drv_context(udata, struct siw_ucontext, base_ucontext); - struct siw_cq *scq = NULL, *rcq = NULL; unsigned long flags; int num_sqe, num_rqe, rv = 0; @@ -353,10 +352,8 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd, rv = -EINVAL; goto err_out; } - scq = to_siw_cq(attrs->send_cq); - rcq = to_siw_cq(attrs->recv_cq); - if (!scq || (!rcq && !attrs->srq)) { + if (!attrs->send_cq || (!attrs->recv_cq && !attrs->srq)) { siw_dbg(base_dev, "send CQ or receive CQ invalid\n"); rv = -EINVAL; goto err_out; @@ -423,8 +420,8 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd, } } qp->pd = pd; - qp->scq = scq; - qp->rcq = rcq; + qp->scq = to_siw_cq(attrs->send_cq); + qp->rcq = to_siw_cq(attrs->recv_cq); if (attrs->srq) { /* |