From: Alexander Guller <alexg@mellanox.com>
Date: Sun, 9 Oct 2011 05:29:35 +0000 (+0000)
Subject: mlx4_en: Fix crash upon device initialization error
X-Git-Tag: firefly_0821_release~3680^2~4273^2~113
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4234144f5ca69a0a13d5adae6c94b6937c52541f;p=firefly-linux-kernel-4.4.55.git

mlx4_en: Fix crash upon device initialization error

Netdevice was being freed without being unregistered first if
mlx4_SET_PORT_general or mlx4_INIT_PORT failed.

Signed-off-by: Alexander Guller <alexg@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index b82db4a46df0..c4c4be426921 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1097,6 +1097,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 		en_err(priv, "Netdev registration failed for port %d\n", port);
 		goto out;
 	}
+	priv->registered = 1;
 
 	en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
 	en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
@@ -1118,7 +1119,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 		en_err(priv, "Failed Initializing port\n");
 		goto out;
 	}
-	priv->registered = 1;
 	mlx4_en_set_default_moderation(priv);
 	queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
 	return 0;