From patchwork Mon Aug 16 13:01:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 498854 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC7FCC432BE for ; Mon, 16 Aug 2021 13:03:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A9BC46328D for ; Mon, 16 Aug 2021 13:03:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236637AbhHPNEa (ORCPT ); Mon, 16 Aug 2021 09:04:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:55478 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231395AbhHPNE1 (ORCPT ); Mon, 16 Aug 2021 09:04:27 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B474B6328A; Mon, 16 Aug 2021 13:03:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1629119036; bh=ne+Wtu4hJc2IMFSic/LraoYeyWkhVZd4VoE3DVZFSig=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=f2ZfgvLvqhqGxZJuSXmNJvMF4LntcRw7pu+t7SNKVit0orvRk0Zo6CED+5ZY9Kv6m vRvjT/gJ2bv3DKWR/6+/panPB0dH3RHp8CjjGSl4dlsvxZe013Y7j0EMrPnsTeSqwW zyCPfBWgVFqm5EzbC0amo963PjC9QyozgfnpOU4o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Aya Levin , Moshe Shemesh , Tariq Toukan , Saeed Mahameed , Sasha Levin Subject: [PATCH 5.4 26/62] net/mlx5: Fix return value from tracer initialization Date: Mon, 16 Aug 2021 15:01:58 +0200 Message-Id: <20210816125429.087053624@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210816125428.198692661@linuxfoundation.org> References: <20210816125428.198692661@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Aya Levin [ Upstream commit bd37c2888ccaa5ceb9895718f6909b247cc372e0 ] Check return value of mlx5_fw_tracer_start(), set error path and fix return value of mlx5_fw_tracer_init() accordingly. Fixes: c71ad41ccb0c ("net/mlx5: FW tracer, events handling") Signed-off-by: Aya Levin Reviewed-by: Moshe Shemesh Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- .../net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c index eb2e57ff08a6..dc36b0db3722 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c @@ -1017,12 +1017,19 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer) MLX5_NB_INIT(&tracer->nb, fw_tracer_event, DEVICE_TRACER); mlx5_eq_notifier_register(dev, &tracer->nb); - mlx5_fw_tracer_start(tracer); - + err = mlx5_fw_tracer_start(tracer); + if (err) { + mlx5_core_warn(dev, "FWTracer: Failed to start tracer %d\n", err); + goto err_notifier_unregister; + } return 0; +err_notifier_unregister: + mlx5_eq_notifier_unregister(dev, &tracer->nb); + mlx5_core_destroy_mkey(dev, &tracer->buff.mkey); err_dealloc_pd: mlx5_core_dealloc_pd(dev, tracer->buff.pdn); + cancel_work_sync(&tracer->read_fw_strings_work); return err; }