linux-kernel - Re: [PATCH net v5] net/mlx5: Add error handling in mlx5_query_nic_vport_node

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Message-ID: <3e5104a5-66cf-4446-9846-22c007fd8002@gmail.com>
Date: Mon, 26 May 2025 09:22:36 +0300
From: Tariq Toukan <ttoukan.linux@...il.com>
To: Wentao Liang <vulab@...as.ac.cn>, saeedm@...dia.com, leon@...nel.org,
 tariqt@...dia.com, andrew+netdev@...n.ch, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Cc: netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
 linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH net v5] net/mlx5: Add error handling in
 mlx5_query_nic_vport_node_guid()



On 24/05/2025 19:34, Wentao Liang wrote:
> The function mlx5_query_nic_vport_node_guid() calls the function
> mlx5_query_nic_vport_context() but does not check its return value.
> A proper implementation can be found in mlx5_nic_vport_query_local_lb().
> 
> Add error handling for mlx5_query_nic_vport_context(). If it fails, free
> the out buffer via kvfree() and return error code.
> 
> Fixes: 9efa75254593 ("net/mlx5_core: Introduce access functions to query vport RoCE fields")
> Cc: stable@...r.kernel.org # v4.5
> Signed-off-by: Wentao Liang <vulab@...as.ac.cn>
> ---
> v5: Remove error tag.
> v4: Fix code error.
> v3: Explicitly mention target branch. Change improper code.
> v2: Remove redundant reassignment. Fix typo error.
> 

Reviewed-by: Tariq Toukan <tariqt@...dia.com>