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=-12.7 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 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 11D90C4320A for ; Mon, 2 Aug 2021 21:52:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E946660E78 for ; Mon, 2 Aug 2021 21:52:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232492AbhHBVw2 (ORCPT ); Mon, 2 Aug 2021 17:52:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229567AbhHBVw1 (ORCPT ); Mon, 2 Aug 2021 17:52:27 -0400 Received: from mail-wr1-x433.google.com (mail-wr1-x433.google.com [IPv6:2a00:1450:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 731B2C06175F; Mon, 2 Aug 2021 14:52:17 -0700 (PDT) Received: by mail-wr1-x433.google.com with SMTP id l18so23067763wrv.5; Mon, 02 Aug 2021 14:52:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:subject:message-id:mime-version:content-disposition; bh=eDoAPGDEbsFfyX+R0VBDU7kfFHDQdI+lx7QTEMxsDzY=; b=iFFs17ngxRsfMIIwqEUA6YubX14D+6duum7bYyFftYJah2vgCAcsy/5D4lJO5H5J9s O8by1TvlQXhrIwqZKIWSQf6x4gWaHnYz/ZyIRai+isdNWbbD8vqH7fF0sVlzQmR2FJit TdZph/ugaXsABN9x0YujsKc1NKyRywP2IrvoIKBXcMoJFPgzYHml8hsTKcJYXM75mjrp Wh6AczDbUR2Wrk+Y+OsCrmoi9OKiWkhUk/aaq3XzIvOM6Z8qFKSEyfx2UAeGkycxHdVN MuDX+HCYFhXDpux6d34MPUY3QHcQgGtOWxDtj00RigWyziIwVvM4n37zaRemCUwMGQhN gdow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition; bh=eDoAPGDEbsFfyX+R0VBDU7kfFHDQdI+lx7QTEMxsDzY=; b=d7JJBitaTBKHB3xUCyCk3zccXLdHh7G7eoJe2AFB5XGLtqNU+IjSUJPVFqsx+6ihi2 96GJhuJuVZv7wWtNOOQbYo3VTfRmBPu7WrjuvRhSve34iid2E41t2JnnI1FzVLBEnwe/ 6HfdzxcWst2M91xsADxmJ3O5WemGuADfsymJhcSPSvBQChiM1s7RPN2t4j6mAZiF0Uok T9/WUrLd5KB7x9FwOK+YzQYWtWZc6uwEEgoyvd0NPgJvSvc6aeiABNn+Mu9dOiIvxVj0 CJXEVyIIv3o8qNYO4NoOEFW4v+5RH3pq9iwOUbZlYBzQqw+qGncMNOBQYYSEY28yvTlH uBMQ== X-Gm-Message-State: AOAM530Uowpm5Z62v7p/zTXOhDCynylNJMmzMnKXG38lNh2/n1xqF4O0 AywIrazbdZIN39KhU6yQiBk= X-Google-Smtp-Source: ABdhPJwvCQbRvDlr3KqFjqnkW0VabiAQTrHqlLAmLkWgkolMAnb/PcC2PPlNynsV0baQG5qmd/sq+Q== X-Received: by 2002:adf:e90e:: with SMTP id f14mr19461799wrm.191.1627941136030; Mon, 02 Aug 2021 14:52:16 -0700 (PDT) Received: from pc ([196.235.140.151]) by smtp.gmail.com with ESMTPSA id l5sm14186292wrc.90.2021.08.02.14.52.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Aug 2021 14:52:15 -0700 (PDT) Date: Mon, 2 Aug 2021 22:52:12 +0100 From: Salah Triki To: Peter Chen , Greg Kroah-Hartman Subject: [PATCH] usb: chipidea: get lock before calling usb_[disable|enable]_autosuspend() Message-ID: <20210802215212.GA1350820@pc> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Based on the documentation of usb_[disable|enable]_autosuspend(), the caller must hold udev's device lock. Signed-off-by: Salah Triki --- drivers/usb/chipidea/otg_fsm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c index 6ed4b00dba96..2d4174250432 100644 --- a/drivers/usb/chipidea/otg_fsm.c +++ b/drivers/usb/chipidea/otg_fsm.c @@ -518,12 +518,14 @@ static void ci_otg_loc_sof(struct otg_fsm *fsm, int on) if (!udev) return; + usb_lock_device(udev); if (on) { usb_disable_autosuspend(udev); } else { pm_runtime_set_autosuspend_delay(&udev->dev, 0); usb_enable_autosuspend(udev); } + usb_unlock_device(udev); } /* -- 2.25.1