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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Aya Levin <ayal@mellanox.com>,
        Feras Daoud <ferasda@mellanox.com>,
        Saeed Mahameed <saeedm@mellanox.com>
Subject: [PATCH 4.19 24/50] net/mlx5e: IPoIB, Add error path in mlx5_rdma_setup_rn
Date:   Fri, 26 Jul 2019 17:24:59 +0200
Message-Id: <20190726152303.052173118@linuxfoundation.org>
In-Reply-To: <20190726152300.760439618@linuxfoundation.org>
References: <20190726152300.760439618@linuxfoundation.org>
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From: Aya Levin <ayal@mellanox.com>

[ Upstream commit ef1ce7d7b67b46661091c7ccc0396186b7a247ef ]

Check return value from mlx5e_attach_netdev, add error path on failure.

Fixes: 48935bbb7ae8 ("net/mlx5e: IPoIB, Add netdevice profile skeleton")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -662,7 +662,9 @@ struct net_device *mlx5_rdma_netdev_allo
 
 	profile->init(mdev, netdev, profile, ipriv);
 
-	mlx5e_attach_netdev(epriv);
+	err = mlx5e_attach_netdev(epriv);
+	if (err)
+		goto detach;
 	netif_carrier_off(netdev);
 
 	/* set rdma_netdev func pointers */
@@ -678,6 +680,11 @@ struct net_device *mlx5_rdma_netdev_allo
 
 	return netdev;
 
+detach:
+	profile->cleanup(epriv);
+	if (ipriv->sub_interface)
+		return NULL;
+	mlx5e_destroy_mdev_resources(mdev);
 destroy_ht:
 	mlx5i_pkey_qpn_ht_cleanup(netdev);
 destroy_wq: