netdev - [ofa-general][PATCH] mlx4: FIX error flow when initializing EQ table

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Message-ID: <4A2BD9B9.6000802@mellanox.co.il>
Date:	Sun, 07 Jun 2009 18:16:09 +0300
From:	Yevgeny Petrilin <yevgenyp@...lanox.co.il>
To:	rdreier@...co.com
CC:	netdev@...r.kernel.org, general@...ts.openfabrics.org,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: [ofa-general][PATCH] mlx4: FIX error flow when initializing EQ table

If mlx4_create_eq() would fail for one of EQ's assigned for
completion handling, the code would try to free the same EQ
we failed to create.
The crash was found by Christoph Lameter

Signed-off-by: Yevgeny Petrilin <yevgenyp@...lanox.co.il>
---
 drivers/net/mlx4/eq.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index 8830dcb..dee1887 100644
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -623,8 +623,10 @@ int mlx4_init_eq_table(struct mlx4_dev *dev)
 		err = mlx4_create_eq(dev, dev->caps.num_cqs + MLX4_NUM_SPARE_EQE,
 				     (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
 				     &priv->eq_table.eq[i]);
-		if (err)
+		if (err) {
+			--i;
 			goto err_out_unmap;
+		}
 	}
 
 	err = mlx4_create_eq(dev, MLX4_NUM_ASYNC_EQE + MLX4_NUM_SPARE_EQE,
-- 
1.6.1.3

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