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=-14.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 4FB04C433ED for ; Thu, 20 May 2021 12:21:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 302E361186 for ; Thu, 20 May 2021 12:21:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232526AbhETMWh (ORCPT ); Thu, 20 May 2021 08:22:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53420 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232583AbhETMWX (ORCPT ); Thu, 20 May 2021 08:22:23 -0400 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34B45C061346 for ; Thu, 20 May 2021 04:14:50 -0700 (PDT) Received: by mail-ed1-x533.google.com with SMTP id i13so18895851edb.9 for ; Thu, 20 May 2021 04:14:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:to:cc:message-id:date:user-agent:mime-version :content-language:content-transfer-encoding; bh=pFXnknOD0RGFOB6yJ92A5CXt58Rj1RfZKPdZ2LMaXN0=; b=mlg20dVlR3cktAF0cxsHoNsw+MdJwAvbV2Bj5ToDAEcJDdu+mUA4gXN4xZOfCGWb0C kMZuFlRcZ8k0InwNFDdmRq7+ax34+4413zNN80D9NRbE1j1rXWx2UkW9v+Q7fmUH2tq9 m6e9ICZUmtFUw5J3erSZt1btOzJwIJeoJt3t4iEfj4gJZQ81WizRW2OlWEMz4LWTM563 wzxhr4BT3fKbcadp1sNJX/4Jo22FGByj/WE92nmaNisiFyprlFGGVna64DgcYJZqqa2h 5tTnlS7R8LcZXoVi/wnuR/klqDlsK2P92cNQYas24EQeboUS5+vjldu6/nxEMTsxG0n4 ayxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:cc:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=pFXnknOD0RGFOB6yJ92A5CXt58Rj1RfZKPdZ2LMaXN0=; b=ZnKE3fcZHcxDZuDMmF+ndgjfPzWzwQ2WLYJrjvfXQsUDGcLnZOQQP+7VpZ7sHXtvzi 7CVqTve/Yieg1NlCnmTlUDRfR6Ox72w5kEisQZL0P1glh5tYioboeYQkUZsIWNPPlICH f7d+xUxrdbYcqfStifPGSqguYjsK8yEwZDHrOtaGKAjN51FhOLv4PBifexXxAk1zfYOd i3H1o1C7Of1Sbt0ffixVIDDFoM2KoJfoQ+cOEH5WYsGNvOaJvpUjpLhcmpT2SdBllzkq NTiQmuFH0HLiKgkQlxV5fbITzF2oWcevsiY/0WKDp+O4YmtDqPxANY/9ELHUfBwF84om ZtKw== X-Gm-Message-State: AOAM532koXe8rjeF301e6FDcEYOvN/puri0Z9ZDZWFbcGpajHigqnL96 wl992Iq5wrX4mipNSO/rgLscfvSFV9Suxw== X-Google-Smtp-Source: ABdhPJwYLIMs+YQIwOTT5vmbgX9xfrVlC7a0QCVEHUjXr2lWEtLxX1b5tgZT8KTNXXcMWaJG36UDIQ== X-Received: by 2002:aa7:de8b:: with SMTP id j11mr4406667edv.363.1621509288594; Thu, 20 May 2021 04:14:48 -0700 (PDT) Received: from ?IPv6:2003:ea:8f38:4600:658e:1e64:dd7a:c8e? (p200300ea8f384600658e1e64dd7a0c8e.dip0.t-ipconnect.de. [2003:ea:8f38:4600:658e:1e64:dd7a:c8e]) by smtp.googlemail.com with ESMTPSA id n13sm1210676ejk.97.2021.05.20.04.14.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 May 2021 04:14:48 -0700 (PDT) From: Heiner Kallweit Subject: [PATCH] i2c: i801: Use pm_runtime_forbid to prevent suspending To: Jean Delvare Cc: "linux-i2c@vger.kernel.org" Message-ID: Date: Thu, 20 May 2021 13:14:43 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Using pm_runtime_get_sync() here is not the best approach. pm_runtime_forbid() is better suited and it doesn't require cleanup activities in the remove callback. Signed-off-by: Heiner Kallweit --- drivers/i2c/busses/i2c-i801.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 6b17afb7b..4e8dc2b0d 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1664,7 +1664,7 @@ i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits, * BIOS is accessing the host controller so prevent it from * suspending automatically from now on. */ - pm_runtime_get_sync(&pdev->dev); + pm_runtime_forbid(&pdev->dev); } if ((function & ACPI_IO_MASK) == ACPI_READ) @@ -1704,11 +1704,6 @@ static void i801_acpi_remove(struct i801_priv *priv) acpi_remove_address_space_handler(adev->handle, ACPI_ADR_SPACE_SYSTEM_IO, i801_acpi_io_handler); - - mutex_lock(&priv->acpi_lock); - if (priv->acpi_reserved) - pm_runtime_put(&priv->pci_dev->dev); - mutex_unlock(&priv->acpi_lock); } #else static inline int i801_acpi_probe(struct i801_priv *priv) { return 0; } -- 2.31.1