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net/mlx5e: fix memory leak in mlx5e_ptp_open

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[ Upstream commit d543b649ff ]

When kvzalloc_node or kvzalloc failed in mlx5e_ptp_open, the memory
pointed by "c" or "cparams" is not freed, which can lead to a memory
leak. Fix by freeing the array in the error path.

Fixes: 145e5637d9 ("net/mlx5e: Add TX PTP port object support")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhengchao Shao
2023-06-30 09:49:03 +08:00
committed by Greg Kroah-Hartman
parent c61303ae2c
commit 4892e1e548
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
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@@ -676,8 +676,10 @@ int mlx5e_ptp_open(struct mlx5e_priv *priv, struct mlx5e_params *params,
c = kvzalloc_node(sizeof(*c), GFP_KERNEL, dev_to_node(mlx5_core_dma_dev(mdev)));
cparams = kvzalloc(sizeof(*cparams), GFP_KERNEL);
if (!c || !cparams)
return -ENOMEM;
if (!c || !cparams) {
err = -ENOMEM;
goto err_free;
}
c->priv = priv;
c->mdev = priv->mdev;