From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 14BB6168CF for ; Mon, 8 May 2023 11:16:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6DCF3C433EF; Mon, 8 May 2023 11:16:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683544608; bh=rV8o0NwuPaC8QPs0IXNsdZZemB1XzchG6OoZm81iUXA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rjcdS7jANVLt86otYld33PWNmNSGZflMV3AOXM8g+1gEjDugtOcQB28CPiEnf89ov YKDKXiuRbQJ9Tnh01kLALXjxDuSLq8lxrxoyFSpEF5M+r6iSqcj4Ug5xB1DTkAIC2l nJEjdAeQ2/IqA7taChwzftwV7BQI9LlLDoO78vR4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Roi Dayan , Maor Dickman , Saeed Mahameed , Sasha Levin Subject: [PATCH 6.3 465/694] net/mlx5e: Fix error flow in representor failing to add vport rx rule Date: Mon, 8 May 2023 11:45:00 +0200 Message-Id: <20230508094448.808445971@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094432.603705160@linuxfoundation.org> References: <20230508094432.603705160@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Roi Dayan [ Upstream commit 0a6b069cc60d68d33b4f6e7dd7f1adc3ec749766 ] On representor init rx error flow the flow steering pointer is being released so mlx5e_attach_netdev() doesn't have a valid fs pointer in its error flow. Make sure the pointer is nullified when released and add a check in mlx5e_fs_cleanup() to verify fs is not null as representor cleanup callback would be called anyway. Fixes: af8bbf730068 ("net/mlx5e: Convert mlx5e_flow_steering member of mlx5e_priv to pointer") Signed-off-by: Roi Dayan Reviewed-by: Maor Dickman Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/en_fs.c | 2 ++ drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 + drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 2 ++ 3 files changed, 5 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c index 05796f8b1d7cf..f1dac0244958c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c @@ -1490,6 +1490,8 @@ struct mlx5e_flow_steering *mlx5e_fs_init(const struct mlx5e_profile *profile, void mlx5e_fs_cleanup(struct mlx5e_flow_steering *fs) { + if (!fs) + return; debugfs_remove_recursive(fs->dfs_root); mlx5e_fs_ethtool_free(fs); mlx5e_fs_tc_free(fs); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 7ca7e9b57607f..579c2d217fdc6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -5270,6 +5270,7 @@ static void mlx5e_nic_cleanup(struct mlx5e_priv *priv) mlx5e_health_destroy_reporters(priv); mlx5e_ktls_cleanup(priv); mlx5e_fs_cleanup(priv->fs); + priv->fs = NULL; } static int mlx5e_init_nic_rx(struct mlx5e_priv *priv) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index 8ff654b4e9e14..6e18d91c3d766 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -828,6 +828,7 @@ static int mlx5e_init_ul_rep(struct mlx5_core_dev *mdev, static void mlx5e_cleanup_rep(struct mlx5e_priv *priv) { mlx5e_fs_cleanup(priv->fs); + priv->fs = NULL; } static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv) @@ -994,6 +995,7 @@ static int mlx5e_init_rep_rx(struct mlx5e_priv *priv) priv->rx_res = NULL; err_free_fs: mlx5e_fs_cleanup(priv->fs); + priv->fs = NULL; return err; } -- 2.39.2