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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7426DC77B7F for ; Mon, 8 May 2023 11:30:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235830AbjEHLaA (ORCPT ); Mon, 8 May 2023 07:30:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235832AbjEHL3o (ORCPT ); Mon, 8 May 2023 07:29:44 -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 128023C482 for ; Mon, 8 May 2023 04:29:25 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E565B6118C for ; Mon, 8 May 2023 11:29:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D29B7C433EF; Mon, 8 May 2023 11:29:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683545364; bh=ER+R3pLtbBbI6PI/FyGcfx0J0RSQOnb6vyKV4j3WfVU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TopMppcT2CXQmzTI06SzxPYVWI22DUkS0NaKdwHkt9yNTJMI8h7qxdKfpn5pGSmet exAOwImc/PEJk4TVe5gYN3TTKFoYabyQ8lxOlX7zsAKz/3/rV+rWZT4ZEiixHxH5ik svpgQmNiIiI//VoYlN8RauxRppQva3Sz6iaVLyL4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Roger Quadros , Thinh Nguyen , Johan Hovold Subject: [PATCH 5.15 016/371] USB: dwc3: fix runtime pm imbalance on probe errors Date: Mon, 8 May 2023 11:43:37 +0200 Message-Id: <20230508094812.725705560@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094811.912279944@linuxfoundation.org> References: <20230508094811.912279944@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Johan Hovold commit 9a8ad10c9f2e0925ff26308ec6756b93fc2f4977 upstream. Make sure not to suspend the device when probe fails to avoid disabling clocks and phys multiple times. Fixes: 328082376aea ("usb: dwc3: fix runtime PM in error path") Cc: stable@vger.kernel.org # 4.8 Cc: Roger Quadros Acked-by: Thinh Nguyen Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20230404072524.19014-2-johan+linaro@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/core.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1642,13 +1642,11 @@ static int dwc3_probe(struct platform_de spin_lock_init(&dwc->lock); mutex_init(&dwc->mutex); + pm_runtime_get_noresume(dev); pm_runtime_set_active(dev); pm_runtime_use_autosuspend(dev); pm_runtime_set_autosuspend_delay(dev, DWC3_DEFAULT_AUTOSUSPEND_DELAY); pm_runtime_enable(dev); - ret = pm_runtime_get_sync(dev); - if (ret < 0) - goto err1; pm_runtime_forbid(dev); @@ -1707,12 +1705,10 @@ err3: dwc3_free_event_buffers(dwc); err2: - pm_runtime_allow(&pdev->dev); - -err1: - pm_runtime_put_sync(&pdev->dev); - pm_runtime_disable(&pdev->dev); - + pm_runtime_allow(dev); + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + pm_runtime_put_noidle(dev); disable_clks: clk_bulk_disable_unprepare(dwc->num_clks, dwc->clks); assert_reset: