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mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file

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[ Upstream commit 8ce34dccbe8fa7d2ef86f2d8e7db2a9b67cabfc3 ]

In case of invalid INI file mlxsw_linecard_types_init() deallocates memory
but doesn't reset pointer to NULL and returns 0. In case of any error
occurred after mlxsw_linecard_types_init() call, mlxsw_linecards_init()
calls mlxsw_linecard_types_fini() which performs memory deallocation again.

Add pointer reset to NULL.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: b217127e5e ("mlxsw: core_linecards: Add line card objects and implement provisioning")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Link: https://patch.msgid.link/20240703203251.8871-1-amishin@t-argos.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Aleksandr Mishin
2024-07-03 23:32:51 +03:00
committed by Greg Kroah-Hartman
parent d6f487e070
commit ab557f5cd9
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/mellanox/mlxsw/core_linecards.c
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@@ -1484,6 +1484,7 @@ err_type_file_file_validate:
vfree(types_info->data); vfree(types_info->data);
err_data_alloc: err_data_alloc:
kfree(types_info); kfree(types_info);
linecards->types_info = NULL;
return err; return err;
} }