From nobody Mon Feb 9 15:25:38 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 297C1EB64D7 for ; Wed, 21 Jun 2023 06:50:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230116AbjFUGuL (ORCPT ); Wed, 21 Jun 2023 02:50:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231185AbjFUGtd (ORCPT ); Wed, 21 Jun 2023 02:49:33 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 587EF273A for ; Tue, 20 Jun 2023 23:47:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687330044; x=1718866044; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=FL4viQoh2/5cl+BmlljLrt/kkNS/dDDnPTDOgJdOpNY=; b=XTppZTDemd+B+3plsBRmvzPLxEDzdexsU41nh0+jVihLz/Scbp8a044U MXq4CRoEm1Aw9TcjtUOUF52c6UWiEbGBqHHizL8bLH+/pfZKb5GxgzNkb 8u3GxCb5amDcFCnYdLis1826FBRzgHMfyBdIXGCHJQ655Iy6nL9YfAuap ZXfnxjkaK5HP2fidVBhkDeFNggWhpUa1kR9ehOPik0p6GPCO/LKIPFW6q Nt1owTWFsv/7IdzCzbWgg/lfLyOO4f8oqcarxIQClT5cEpeZDRWG99g6l /BMear+xWUdiQfa7OnWJXzAhdXDzwoXCTFp4JTGHG6wmrdQoaFZEyXotD Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10747"; a="389511916" X-IronPort-AV: E=Sophos;i="6.00,259,1681196400"; d="scan'208";a="389511916" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jun 2023 23:47:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10747"; a="779728091" X-IronPort-AV: E=Sophos;i="6.00,259,1681196400"; d="scan'208";a="779728091" Received: from unknown (HELO localhost.localdomain) ([10.226.216.90]) by fmsmga008.fm.intel.com with ESMTP; 20 Jun 2023 23:47:22 -0700 From: tien.sung.ang@intel.com To: Dinh Nguyen Cc: linux-kernel@vger.kernel.org, Ang Tien Sung Subject: [PATCH v2 2/2] firmware: stratix10-svc: fix bug in saving controller data Date: Wed, 21 Jun 2023 14:46:45 +0800 Message-Id: <20230621064645.1431883-3-tien.sung.ang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230621064645.1431883-1-tien.sung.ang@intel.com> References: <20230621064645.1431883-1-tien.sung.ang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Ang Tien Sung Fix the incorrect usage of platform_set_drvdata and dev_set_drvdata. They both are of the same data and overrides each other. This resulted in the rmmod of the svc driver to fail and throw a kernel panic for kthread_stop and fifo free. Fixes: b5dc75c915cd ("firmware: stratix10-svc: extend svc to support new RS= U features") Signed-off-by: Ang Tien Sung --- drivers/firmware/stratix10-svc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-= svc.c index ca713f39107e..60e08987c402 100644 --- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -130,6 +130,7 @@ struct stratix10_svc_data { * @complete_status: state for completion * @invoke_fn: function to issue secure monitor call or hypervisor call * @sdm_lock: a mutex lock to allow only one pending sdm message per client + * @svc: manages the list of client svc drivers * * This struct is used to create communication channels for service client= s, to * handle secure monitor or hypervisor call. @@ -144,6 +145,7 @@ struct stratix10_svc_controller { svc_invoke_fn *invoke_fn; /* Enforces atomic command sending to SDM */ struct mutex *sdm_lock; + struct stratix10_svc *svc; }; =20 /** @@ -1252,6 +1254,7 @@ static int stratix10_svc_drv_probe(struct platform_de= vice *pdev) ret =3D -ENOMEM; goto err_free_kfifo; } + controller->svc =3D svc; =20 svc->stratix10_svc_rsu =3D platform_device_alloc(STRATIX10_RSU, 0); if (!svc->stratix10_svc_rsu) { @@ -1279,8 +1282,6 @@ static int stratix10_svc_drv_probe(struct platform_de= vice *pdev) goto err_unregister_dev; } =20 - dev_set_drvdata(dev, svc); - pr_info("Intel Service Layer Driver Initialized\n"); =20 return 0; @@ -1296,8 +1297,8 @@ static int stratix10_svc_drv_probe(struct platform_de= vice *pdev) =20 static int stratix10_svc_drv_remove(struct platform_device *pdev) { - struct stratix10_svc *svc =3D dev_get_drvdata(&pdev->dev); struct stratix10_svc_controller *ctrl =3D platform_get_drvdata(pdev); + struct stratix10_svc *svc =3D ctrl->svc; =20 platform_device_unregister(svc->intel_svc_fcs); platform_device_unregister(svc->stratix10_svc_rsu); --=20 2.25.1