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net/mlx5e: Fix error path of device attach

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[ Upstream commit 5cd39b6e9a420329a9a408894be7ba8aa7dd755e ]

On failure to attach the netdev, fix the rollback by re-setting the
device's state back to MLX5E_STATE_DESTROYING.

Failing to attach doesn't stop statistics polling via .ndo_get_stats64.
In this case, although the device is not attached, it falsely continues
to query the firmware for counters. Setting the device's state back to
MLX5E_STATE_DESTROYING prevents the firmware counters query.

Fixes: 26e59d8077a3 ("net/mlx5e: Implement mlx5e interface attach/detach callbacks")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Aya Levin 2020-07-01 12:21:53 +03:00 committed by Greg Kroah-Hartman
parent 00bedd730d
commit 8901896f69
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@ -5356,6 +5356,8 @@ err_cleanup_tx:
profile->cleanup_tx(priv);
out:
set_bit(MLX5E_STATE_DESTROYING, &priv->state);
cancel_work_sync(&priv->update_stats_work);
return err;
}