Re: [PATCH][linux-next] net/mlx5: Bridge, fix uninitialized variable in mlx5_esw_bridge_port_changeupper()

[Vlad Buslov <vladbu@nvidia.com>]

On Wed 18 Aug 2021 at 18:52, Tim Gardner <tim.gardner@canonical.com> wrote:
> A recent change removed code that initialized the return code variable 'err'. It
> is now possible for mlx5_esw_bridge_port_changeupper() to return an error code
> using this uninitialized variable. Fix it by initializing to 0.
>
> Addresses-Coverity: ("Uninitialized scalar variable (UNINIT)")
>
> Cc: Saeed Mahameed <saeedm@nvidia.com>
> Cc: Leon Romanovsky <leon@kernel.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: Vlad Buslov <vladbu@nvidia.com>
> Cc: Jianbo Liu <jianbol@nvidia.com>
> Cc: Mark Bloch <mbloch@nvidia.com>
> Cc: Roi Dayan <roid@nvidia.com>
> Cc: Vladimir Oltean <vladimir.oltean@nxp.com>
> Cc: netdev@vger.kernel.org
> Cc: linux-rdma@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
> ---

Tim, thanks for fixing this!

Saeed, this is the second similar issue that I mentioned in my reply to
Colin. Again, I've already submitted same patch internally and this one
is as good as mine.

Reviewed-by: Vlad Buslov <vladbu@nvidia.com>

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