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net/mlx5: Nullify qp->dbg pointer post destruction

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Nullifying qp->dbg is a preparation for the next patches
from the series in which mlx5_core_destroy_qp() could actually fail,
and then it can be called again which causes a kernel crash, since
qp->dbg was not nullified in previous call.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Link: https://lore.kernel.org/r/1677e52bb642fd8d6062d73a5aa69083c0283dc9.1685953497.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Patrisious Haddad
2023-06-05 13:14:04 +03:00
committed by Leon Romanovsky
parent 7ad697cdd3
commit c023b61ac8
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
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@@ -513,11 +513,11 @@ EXPORT_SYMBOL(mlx5_debug_qp_add);
void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp)
{
if (!mlx5_debugfs_root)
if (!mlx5_debugfs_root || !qp->dbg)
return;
if (qp->dbg)
rem_res_tree(qp->dbg);
rem_res_tree(qp->dbg);
qp->dbg = NULL;
}
EXPORT_SYMBOL(mlx5_debug_qp_remove);