net/mlx4_en: Fix double-release-range in tx-rings
Jack Morgenstein [Thu, 25 Oct 2012 01:12:47 +0000 (01:12 +0000)]
The QP range is reserved as a single block. However, when freeing the
en resources, the tx-ring QPs are released both in mlx4_en_destroy_tx_ring
(one at a time) and in mlx4_en_free_resources (as a block release).

Fix by eliminating the one-at-a-time release in mlx4_en_destroy_tx_ring.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx4/en_tx.c

index c10e3a6..0a51095 100644 (file)
@@ -143,7 +143,6 @@ void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
                mlx4_bf_free(mdev->dev, &ring->bf);
        mlx4_qp_remove(mdev->dev, &ring->qp);
        mlx4_qp_free(mdev->dev, &ring->qp);
-       mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
        mlx4_en_unmap_buffer(&ring->wqres.buf);
        mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
        kfree(ring->bounce_buf);