linux-kernel - [PATCH net 1/5] net/mlx5e: Fix missing error assignment in mlx5e_xfrm_add

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Message-ID: <1762681073-1084058-2-git-send-email-tariqt@nvidia.com>
Date: Sun, 9 Nov 2025 11:37:49 +0200
From: Tariq Toukan <tariqt@...dia.com>
To: Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew+netdev@...n.ch>, "David
 S. Miller" <davem@...emloft.net>
CC: Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>,
	Tariq Toukan <tariqt@...dia.com>, Mark Bloch <mbloch@...dia.com>,
	<netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Gal Pressman <gal@...dia.com>, "Carolina
 Jubran" <cjubran@...dia.com>
Subject: [PATCH net 1/5] net/mlx5e: Fix missing error assignment in mlx5e_xfrm_add_state()

From: Carolina Jubran <cjubran@...dia.com>

Assign the return value of mlx5_eswitch_block_mode() to 'err' before
checking it to avoid returning an uninitialized error code.

Fixes: 22239eb258bc ("net/mlx5e: Prevent tunnel reformat when tunnel mode not allowed")
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
Closes: https://lore.kernel.org/r/202510271649.uwsIxD6O-lkp@intel.com/
Closes: http://lore.kernel.org/linux-rdma/aPIEK4rLB586FdDt@stanley.mountain/
Signed-off-by: Carolina Jubran <cjubran@...dia.com>
Reviewed-by: Jianbo Liu <jianbol@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index 0a4fb8c92268..35d9530037a6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -804,7 +804,8 @@ static int mlx5e_xfrm_add_state(struct net_device *dev,
 		goto err_xfrm;
 	}
 
-	if (mlx5_eswitch_block_mode(priv->mdev))
+	err = mlx5_eswitch_block_mode(priv->mdev);
+	if (err)
 		goto unblock_ipsec;
 
 	if (x->props.mode == XFRM_MODE_TUNNEL &&
-- 
2.31.1