From mboxrd@z Thu Jan 1 00:00:00 1970 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,URIBL_BLOCKED, 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 B974CC4338F for ; Mon, 2 Aug 2021 05:13:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DC556023F for ; Mon, 2 Aug 2021 05:13:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232194AbhHBFNq (ORCPT ); Mon, 2 Aug 2021 01:13:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232070AbhHBFNn (ORCPT ); Mon, 2 Aug 2021 01:13:43 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7796BC061798 for ; Sun, 1 Aug 2021 22:13:33 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id e2-20020a17090a4a02b029016f3020d867so23059645pjh.3 for ; Sun, 01 Aug 2021 22:13:33 -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=YH9RqDwj3Hxwa7+6WVhzvigR5j4AY8ETFRKdu6OaqBQ=; b=blOinbp2TXOPDqv6bdBdL2rd9HvkvFhk10+RA5xVfJb0q5wIFEquiNAQxfMLAFtb7R uPzskefIAJPHB2MiKNoBRURViB7EmYKTygEoSQ70T3hbWIjLGHdoCzXr/b2NqVvNAWLU 3xaw97BfrrpFv/PHOoCgvoQGKY9z3lzK2JghsIipMcHOChzRNSW3jLZMWAAKJew1E7Io 3NEb92j9eycwBW4azyxzIKrFb8jNrUUSFUu3J7GyBGKXi7YTtWRc92FzHUBMUiKaF/mR RucnPzfY17O2X/fcr8LnEgpBaw7hYczFGX2o1oq3QRWBrCWtS6XrrI9AnuNi27FeB3mc hhsg== 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=YH9RqDwj3Hxwa7+6WVhzvigR5j4AY8ETFRKdu6OaqBQ=; b=rJl80jw/5akl5UETb8NxbG5EdbT/dwjWFkBuNFxjT6gUzIqQoicoP64xgbWT34q5so 9/z9C7MdI0FWlF8kBUAYX+OUkzyLciQgyyQ7gPgv1eTKFUQJS/8FFl6wrnWS7JXgW/Pc /LCDKhpU6I41wSReHv0swGG0dwM8TjFA7rz3wetfAyyl7hCEN/D9SxesBCEsGK35A4/Q 49knyYw0tfLna7msz7ewCtYxBnksGuiAFNDc28GO+ZOswC21dq5h3yh7249TJZxDsDgS OsoL8qFT/Y5mu94vrdnuU+c1uytL7LRNln5R6azgT2pDcWcKQgi3mPOLPBNiZrN21yWc qvYA== X-Gm-Message-State: AOAM532X7etL9fc8UaOBUgZdt53tbNhn5St5y3DFbzaafkDoRWBLOqIW ts+/maEly0XCbifFecIMRb1U X-Google-Smtp-Source: ABdhPJyU/3AfaD03IPy5fAmQykK4Wb/SqJad4FS3c4iFTnWzBEX6wqnzDlxXZ4CIrcmnOIoXTd323Q== X-Received: by 2002:a17:90a:df05:: with SMTP id gp5mr15562702pjb.165.1627881213065; Sun, 01 Aug 2021 22:13:33 -0700 (PDT) Received: from localhost.localdomain ([2409:4072:6e99:242f:6391:b1b4:1ad8:fbdf]) by smtp.gmail.com with ESMTPSA id x26sm9947000pfm.77.2021.08.01.22.13.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Aug 2021 22:13:32 -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, Jeffrey Hugo , Manivannan Sadhasivam Subject: [PATCH 04/10] bus: mhi: core: Set BHI and BHIe pointers to NULL in clean-up Date: Mon, 2 Aug 2021 10:42:49 +0530 Message-Id: <20210802051255.5771-5-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210802051255.5771-1-manivannan.sadhasivam@linaro.org> References: <20210802051255.5771-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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. 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); -- 2.25.1