From: Aya Levin ayal@nvidia.com
[ 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 --- .../net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c index 01a1d02dcf15..3f8a98093f8c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c @@ -1019,12 +1019,19 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer) MLX5_NB_INIT(&tracer->nb, fw_tracer_event, DEVICE_TRACER); mlx5_eq_notifier_register(dev, &tracer->nb);
- mlx5_fw_tracer_start(tracer); - + err = mlx5_fw_tracer_start(tracer); + if (err) { + mlx5_core_warn(dev, "FWTracer: Failed to start tracer %d\n", err); + goto err_notifier_unregister; + } return 0;
+err_notifier_unregister: + mlx5_eq_notifier_unregister(dev, &tracer->nb); + mlx5_core_destroy_mkey(dev, &tracer->buff.mkey); err_dealloc_pd: mlx5_core_dealloc_pd(dev, tracer->buff.pdn); + cancel_work_sync(&tracer->read_fw_strings_work); return err; }