net/mlx5: Fix potential sleeping in atomic context

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Fixes the below flow of sleeping in atomic context by releasing
the RCU lock before calling to free_match_list.

build_match_list() <- disables preempt
-> free_match_list()
   -> tree_put_node()
      -> down_write_ref_node() <- take write lock

Fixes: 693c6883bb ("net/mlx5: Add hash table for flow groups in flow table")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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Maor Gottlieb 2021-09-01 11:48:13 +03:00 • committed by Saeed Mahameed

parent dfe6fd72b5

commit ee27e330a9

1 changed files with 2 additions and 3 deletions

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

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