From: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Date: Thu, 29 Dec 2011 05:49:58 +0000 (+0000)
Subject: mlx4_en: nullify cq->vector field when closing completion queue
X-Git-Tag: upstream/snapshot3+hdmi~8479^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cd3109d23c32452c85d73cc1a01282846a23582c;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

mlx4_en: nullify cq->vector field when closing completion queue

Caused loss of connectivity when changing ring size.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
index 227997d..5829e0b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
@@ -147,6 +147,7 @@ void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
 	mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
 	if (priv->mdev->dev->caps.comp_pool && cq->vector)
 		mlx4_release_eq(priv->mdev->dev, cq->vector);
+	cq->vector = 0;
 	cq->buf_size = 0;
 	cq->buf = NULL;
 }