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mlxsw: minimal: fix potential memory leak in mlxsw_m_linecards_init

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[ Upstream commit 08fc75735fda3be97194bfbf3c899c87abb3d0fe ]

The line cards array is not freed in the error path of
mlxsw_m_linecards_init(), which can lead to a memory leak. Fix by
freeing the array in the error path, thereby making the error path
identical to mlxsw_m_linecards_fini().

Fixes: 01328e23a476 ("mlxsw: minimal: Extend module to port mapping with slot index")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20230630012647.1078002-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhengchao Shao 2023-06-30 09:26:47 +08:00 committed by Greg Kroah-Hartman
parent 0b24d3e4b9
commit d4f5b1dd81
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/mellanox/mlxsw/minimal.c
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@ -430,6 +430,7 @@ static int mlxsw_m_linecards_init(struct mlxsw_m *mlxsw_m)
err_kmalloc_array:
for (i--; i >= 0; i--)
kfree(mlxsw_m->line_cards[i]);
kfree(mlxsw_m->line_cards);
err_kcalloc:
kfree(mlxsw_m->ports);
return err;