From patchwork Fri Jun 25 12:33:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 12344931 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 AFDA1C49EAF for ; Fri, 25 Jun 2021 12:35:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9967661927 for ; Fri, 25 Jun 2021 12:35:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231408AbhFYMhU (ORCPT ); Fri, 25 Jun 2021 08:37:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231602AbhFYMhL (ORCPT ); Fri, 25 Jun 2021 08:37:11 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 45E77C061280 for ; Fri, 25 Jun 2021 05:34:46 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id a127so7911604pfa.10 for ; Fri, 25 Jun 2021 05:34:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=sNO7OvoezOyKwRQqQPCTAGHXfd3P08Ex5P2XMikHwWs=; b=e9MtdpfGHP20g++UmMZA7v/PwkSWPmVAUxQ1kUZC76KT2yBOov0+XQs6prxQxXR2JU J0RlewuEWXnVf2dy2yeBZdZvVDfV1jC9PF/xziGneT/XMx/iRdxdAEc1r96xrIy9l816 0FUtsFEgPVbP2Xzfvlg3QF9t/1vkQYKDmQATgckKnyMnzIATgGlSYnDkUEwedWOUS8QP H/5EMgjlapCD/mrgLvIj1zFWhWCdZo4jYMFjww3c4QC8gjDF54bKWDxx9HVEicB4mjjK l/AVlaKHWQaTME7XvE/XUSA8Lu219Qp/aiGadiyAhw1kKyHSIgoqN+r9Cl7BBUEHpIWf QHnQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=sNO7OvoezOyKwRQqQPCTAGHXfd3P08Ex5P2XMikHwWs=; b=IXzw+98c3kQ9a2NysqelfTuhsPW7BF6Y0owgAuoVfd7C23UM7uvngo/baSehIe3mgI PSvAEteV1MeY02sVxjxSNHglNrrIGCyQSQ6V2VpXNsKnuuPZuWDhTqSvcRsf1esiUKsm 7TmerXxqibigSB2r8PPn/Kq8usZatc+ToBVC39NkAzrdNRz/hEdM2gE/IQSneW1qMUsX J/s5ylwqIfK4hVkCeDUSfwr8cxB00lIKW9MrdY1m+0+26pCxJHnlC47V9hbgORHQtTTI JI17L/ZxQAd2gCO9hCu8dl4W/j8SIFPoGFUo2LcRa49ZeebDnNxbQVqQGMhRAjniZWcd d84g== X-Gm-Message-State: AOAM532g2u4kOlgcN1ucruMZemDMMniWvJCwj7EgZTPWTOs3CcDdMRl1 LSoVmtUyXHwmDXB3nMgwdXBT X-Google-Smtp-Source: ABdhPJxG2i6xZEvuWCUBDKfc9EaIHgiHlAUIJ5/atMQPCixk52P1mNDwspVOrh28gdRWtiQ4AGZbpw== X-Received: by 2002:a63:7404:: with SMTP id p4mr9338107pgc.405.1624624485806; Fri, 25 Jun 2021 05:34:45 -0700 (PDT) Received: from localhost.localdomain ([2409:4072:600b:2a0:ed5d:53e7:c64e:1bac]) by smtp.gmail.com with ESMTPSA id y7sm6077780pfy.153.2021.06.25.05.34.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Jun 2021 05:34:45 -0700 (PDT) From: Manivannan Sadhasivam To: gregkh@linuxfoundation.org Cc: hemantk@codeaurora.org, bbhatt@codeaurora.org, linux-arm-msm@vger.kernel.org, jhugo@codeaurora.org, linux-kernel@vger.kernel.org, loic.poulain@linaro.org, kvalo@codeaurora.org, ath11k@lists.infradead.org, stable@vger.kernel.org, Jeffrey Hugo , Manivannan Sadhasivam Subject: [PATCH 06/10] bus: mhi: core: Set BHI and BHIe pointers to NULL in clean-up Date: Fri, 25 Jun 2021 18:03:51 +0530 Message-Id: <20210625123355.11578-7-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210625123355.11578-1-manivannan.sadhasivam@linaro.org> References: <20210625123355.11578-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Bhaumik Bhatt Set the BHI and BHIe pointers to NULL as part of clean-up. This makes sure that stale pointers are not accessed after powering MHI down. Cc: stable@vger.kernel.org Suggested-by: Hemant Kumar Signed-off-by: Bhaumik Bhatt Reviewed-by: Jeffrey Hugo Reviewed-by: Hemant Kumar Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/1620330705-40192-3-git-send-email-bbhatt@codeaurora.org Signed-off-by: Manivannan Sadhasivam --- drivers/bus/mhi/core/init.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c index 11c7a3d3c9bf..1cc2f225d3d1 100644 --- a/drivers/bus/mhi/core/init.c +++ b/drivers/bus/mhi/core/init.c @@ -1132,6 +1132,9 @@ void mhi_unprepare_after_power_down(struct mhi_controller *mhi_cntrl) mhi_cntrl->rddm_image = NULL; } + mhi_cntrl->bhi = NULL; + mhi_cntrl->bhie = NULL; + mhi_deinit_dev_ctxt(mhi_cntrl); } EXPORT_SYMBOL_GPL(mhi_unprepare_after_power_down);