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Commit 60b1809f authored by Yevgeny Petrilin's avatar Yevgeny Petrilin Committed by David S. Miller
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mlx4_en: Restoring RX buffer pointer in case of failure



If not done, second attempt to open the RX ring would cause memory corruption.

Signed-off-by: default avatarYevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ab6dc30d
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+4 −0
Original line number Diff line number Diff line
@@ -345,6 +345,8 @@ int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
		err = mlx4_en_init_allocator(priv, ring);
		if (err) {
			en_err(priv, "Failed initializing ring allocator\n");
			if (ring->stride <= TXBB_SIZE)
				ring->buf -= TXBB_SIZE;
			ring_ind--;
			goto err_allocator;
		}
@@ -369,6 +371,8 @@ err_buffers:
	ring_ind = priv->rx_ring_num - 1;
err_allocator:
	while (ring_ind >= 0) {
		if (priv->rx_ring[ring_ind].stride <= TXBB_SIZE)
			priv->rx_ring[ring_ind].buf -= TXBB_SIZE;
		mlx4_en_destroy_allocator(priv, &priv->rx_ring[ring_ind]);
		ring_ind--;
	}