Commit c023b61a authored by Patrisious Haddad's avatar Patrisious Haddad Committed by Leon Romanovsky
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net/mlx5: Nullify qp->dbg pointer post destruction 



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: default avatarPatrisious Haddad <phaddad@nvidia.com>
Link: https://lore.kernel.org/r/1677e52bb642fd8d6062d73a5aa69083c0283dc9.1685953497.git.leon@kernel.org


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 7ad697cd

drivers/net/ethernet/mellanox/mlx5/core/debugfs.c

+3 −3
Original line number Diff line number Diff line
@@ -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);

	qp->dbg = NULL;

}

EXPORT_SYMBOL(mlx5_debug_qp_remove);