IB/ehca: Wait for async events to finish before destroying QP

[linux-2.6-omap-h63xx.git] / drivers / infiniband / hw / ehca / ehca_qp.c

diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index 18fba92fa7ae107311121b7cc591aa077c7b51eb..3f59587338ea5fc03a2404500f0d9633a468439f 100644 (file)
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -566,6 +566,8 @@ static struct ehca_qp *internal_create_qp(
                return ERR_PTR(-ENOMEM);
        }
 
+       atomic_set(&my_qp->nr_events, 0);
+       init_waitqueue_head(&my_qp->wait_completion);
        spin_lock_init(&my_qp->spinlock_s);
        spin_lock_init(&my_qp->spinlock_r);
        my_qp->qp_type = qp_type;
@@ -1934,6 +1936,9 @@ static int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp,
        idr_remove(&ehca_qp_idr, my_qp->token);
        write_unlock_irqrestore(&ehca_qp_idr_lock, flags);
 
+       /* now wait until all pending events have completed */
+       wait_event(my_qp->wait_completion, !atomic_read(&my_qp->nr_events));
+
        h_ret = hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp);
        if (h_ret != H_SUCCESS) {
                ehca_err(dev, "hipz_h_destroy_qp() failed h_ret=%li "