[PATCH 5.2 27/66] net/mlx5e: IPoIB, Add error path in mlx5_rdma_setup_rn

[Greg Kroah-Hartman]

From: Aya Levin <a...@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 <a...@mellanox.com>
Reviewed-by: Feras Daoud <fera...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gre...@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
@@ -698,7 +698,9 @@ static int mlx5_rdma_setup_rn(struct ib_
 
        prof->init(mdev, netdev, prof, ipriv);
 
-       mlx5e_attach_netdev(epriv);
+       err = mlx5e_attach_netdev(epriv);
+       if (err)
+               goto detach;
        netif_carrier_off(netdev);
 
        /* set rdma_netdev func pointers */
@@ -714,6 +716,11 @@ static int mlx5_rdma_setup_rn(struct ib_
 
        return 0;
 
+detach:
+       prof->cleanup(epriv);
+       if (ipriv->sub_interface)
+               return err;
+       mlx5e_destroy_mdev_resources(mdev);
 destroy_ht:
        mlx5i_pkey_qpn_ht_cleanup(netdev);
        return err;