IB/mlx4: Set bad_wr for invalid send opcode

If the opcode of a work request exceeds the range of valid opcodes,
return the pointer to the offending work request.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index aa2aefa4236..3a784896662 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1884,6 +1884,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                 wmb();
 
                 if (wr->opcode < 0 || wr->opcode >= ARRAY_SIZE(mlx4_ib_opcode)) {
+                        *bad_wr = wr;
                         err = -EINVAL;
                         goto out;
                 }