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net/mlx5e: Fix error path of updating netdev queues
commit 5e7923a upstream. Avoid division by zero in the error flow. In the driver TC number can be either 1 or 8. When TC count is set to 1, driver zero netdev->num_tc. Hence, need to convert it back from 0 to 1 in the error flow. Fixes: fa37487 ("net/mlx5e: Handle errors from netif_set_real_num_{tx,rx}_queues") Signed-off-by: Aya Levin <ayal@nvidia.com> Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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