1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/qib/qib_sdma.c b/drivers/infiniband/hw/qib/qib_sdma.c
index b8456881f7f6..cad44491320b 100644
--- a/drivers/infiniband/hw/qib/qib_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_sdma.c
@@ -656,6 +656,7 @@ unmap:
         }
         qp = tx->qp;
         qib_put_txreq(tx);
+        spin_lock(&qp->r_lock);
         spin_lock(&qp->s_lock);
         if (qp->ibqp.qp_type == IB_QPT_RC) {
                 /* XXX what about error sending RDMA read responses? */
@@ -664,6 +665,7 @@ unmap:
         } else if (qp->s_wqe)
                 qib_send_complete(qp, qp->s_wqe, IB_WC_GENERAL_ERR);
         spin_unlock(&qp->s_lock);
+        spin_unlock(&qp->r_lock);
         /* return zero to process the next send work request */
         goto unlock;