IB/ehca: Reject receive work requests if QP is in RESET state

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c
index b799b271021..dd9bc68f1c7 100644
--- a/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ b/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -544,8 +544,16 @@ int ehca_post_recv(struct ib_qp *qp,
                    struct ib_recv_wr *recv_wr,
                    struct ib_recv_wr **bad_recv_wr)
 {
-        return internal_post_recv(container_of(qp, struct ehca_qp, ib_qp),
-                                  qp->device, recv_wr, bad_recv_wr);
+        struct ehca_qp *my_qp = container_of(qp, struct ehca_qp, ib_qp);
+
+        /* Reject WR if QP is in RESET state */
+        if (unlikely(my_qp->state == IB_QPS_RESET)) {
+                ehca_err(qp->device, "Invalid QP state  qp_state=%d qpn=%x",
+                         my_qp->state, qp->qp_num);
+                return -EINVAL;
+        }
+
+        return internal_post_recv(my_qp, qp->device, recv_wr, bad_recv_wr);
 }
 
 int ehca_post_srq_recv(struct ib_srq *srq,