IB/mlx4: Fix MTT leakage in resize CQ

[linux-2.6-omap-h63xx.git] / drivers / infiniband / hw / mlx4 / cq.c

diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index d0866a3636e257b402427588346bb9be28f35fbb..18308494a195bb0d4af1a068ddfd319a3f7b3488 100644 (file)
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -343,6 +343,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 {
        struct mlx4_ib_dev *dev = to_mdev(ibcq->device);
        struct mlx4_ib_cq *cq = to_mcq(ibcq);
+       struct mlx4_mtt mtt;
        int outst_cqe;
        int err;
 
@@ -376,10 +377,13 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
                        goto out;
        }
 
+       mtt = cq->buf.mtt;
+
        err = mlx4_cq_resize(dev->dev, &cq->mcq, entries, &cq->resize_buf->buf.mtt);
        if (err)
                goto err_buf;
 
+       mlx4_mtt_cleanup(dev->dev, &mtt);
        if (ibcq->uobject) {
                cq->buf      = cq->resize_buf->buf;
                cq->ibcq.cqe = cq->resize_buf->cqe;
@@ -406,6 +410,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
        goto out;
 
 err_buf:
+       mlx4_mtt_cleanup(dev->dev, &cq->resize_buf->buf.mtt);
        if (!ibcq->uobject)
                mlx4_ib_free_cq_buf(dev, &cq->resize_buf->buf,
                                    cq->resize_buf->cqe);