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[2620:137:e000::1:20]) by mx.google.com with ESMTP id j4-20020a170903028400b001b697cc43ffsi1092229plr.433.2023.06.21.05.30.26; Wed, 21 Jun 2023 05:30:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="V/yAGLCv"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231594AbjFUMBz (ORCPT + 99 others); Wed, 21 Jun 2023 08:01:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231127AbjFUMBy (ORCPT ); Wed, 21 Jun 2023 08:01:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD6AC170C; Wed, 21 Jun 2023 05:01:53 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 614DA6150D; Wed, 21 Jun 2023 12:01:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E40EC433C0; Wed, 21 Jun 2023 12:01:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1687348912; bh=Zbli/nHmg0Y57wvMmEMuZ0gz0XpSicqxaFo4q834toM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=V/yAGLCvaQc5LnmSglHk1VokYaWRV/9qIdTsqcQZhm7swikGI25GfzztYtjEVSt4V BnS6/YJIGS2+6kP/NmRrrNQ8nzbMxu8wFv/qWwQABnfnCXu/owoLpQXz5Nt5HN7KT0 f+frDJMnL9rfbUrFTEDHjmi/8tSHMCur5ocfPImS5TwRQ0j3gWF0Raqz93EPD8TbTK C0rPw9+JqPsp+u3TJmB9us/Y9hqYV6PPozUwW1mBKaGh0ALHyDUZZQ09ijv0nqB0Bx 6+ww1GKUy04D49c9RJOlLFbwRgUGtxlXhRqc7yajhdmnQxjnapeZ0vQl7yVtFVOuSa jHsCuNzwZLXdA== Date: Wed, 21 Jun 2023 17:31:48 +0530 From: Vinod Koul To: Haotien Hsu Cc: JC Kuo , Kishon Vijay Abraham I , Thierry Reding , Jonathan Hunter , Philipp Zabel , linux-phy@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Wayne Chang , EJ Hsu Subject: Re: [PATCH v3] phy: tegra: xusb: Clear the driver reference in usb-phy dev Message-ID: References: <20230609062932.3276509-1-haotienh@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230609062932.3276509-1-haotienh@nvidia.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09-06-23, 14:29, Haotien Hsu wrote: > From: EJ Hsu > > For the dual-role port, it will assign the phy dev to usb-phy dev and > use the port dev driver as the dev driver of usb-phy. > > When we try to destroy the port dev, it will destroy its dev driver > as well. But we did not remove the reference from usb-phy dev. This > might cause the use-after-free issue in KASAN. Applied, thanks -- ~Vinod