RDMA/nes: In nes_post_send() always set bad_wr on error

On error, set bad_wr in nes_post_send().  Stop processing ib_wr queue
when an error is detected.

Signed-off-by: Frank Zago <fzago@systemfabricworks.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index a680c42d6e8c..25b52d2478a8 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -3386,8 +3386,10 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
         wqe_count = 0;
         total_payload_length = 0;
 
-        if (nesqp->ibqp_state > IB_QPS_RTS)
-                return -EINVAL;
+        if (nesqp->ibqp_state > IB_QPS_RTS) {
+                err = -EINVAL;
+                goto out;
+        }
 
         spin_lock_irqsave(&nesqp->lock, flags);
 
@@ -3498,6 +3500,9 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
                                         break;
                         }
 
+                if (err)
+                        break;
+
                 if (ib_wr->send_flags & IB_SEND_SIGNALED) {
                         wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL;
                 }
@@ -3522,6 +3527,7 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
 
         spin_unlock_irqrestore(&nesqp->lock, flags);
 
+out:
         if (err)
                 *bad_wr = ib_wr;
         return err;