net/mlx5: Fix return value from tracer initialization
[ Upstream commit bd37c2888ccaa5ceb9895718f6909b247cc372e0 ] Check return value of mlx5_fw_tracer_start(), set error path and fix return value of mlx5_fw_tracer_init() accordingly. Fixes: c71ad41ccb0c ("net/mlx5: FW tracer, events handling") Signed-off-by: Aya Levin <ayal@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1017,12 +1017,19 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer)
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MLX5_NB_INIT(&tracer->nb, fw_tracer_event, DEVICE_TRACER);
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mlx5_eq_notifier_register(dev, &tracer->nb);
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mlx5_fw_tracer_start(tracer);
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err = mlx5_fw_tracer_start(tracer);
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if (err) {
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mlx5_core_warn(dev, "FWTracer: Failed to start tracer %d\n", err);
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goto err_notifier_unregister;
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}
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return 0;
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err_notifier_unregister:
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mlx5_eq_notifier_unregister(dev, &tracer->nb);
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mlx5_core_destroy_mkey(dev, &tracer->buff.mkey);
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err_dealloc_pd:
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mlx5_core_dealloc_pd(dev, tracer->buff.pdn);
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cancel_work_sync(&tracer->read_fw_strings_work);
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return err;
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}
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