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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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=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 70060C433B4 for ; Mon, 10 May 2021 10:26:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3EDA761458 for ; Mon, 10 May 2021 10:26:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231668AbhEJK1w (ORCPT ); Mon, 10 May 2021 06:27:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:59860 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231549AbhEJK07 (ORCPT ); Mon, 10 May 2021 06:26:59 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 26FBD61493; Mon, 10 May 2021 10:25:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620642354; bh=jmHrcJkeLpaMF2gfUFLZ3/4K7LZ0sMd5TJntExn0exY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TKCiNSV0FRg1at1Vkh8nqIYxrBfOv4W9Elmnd+cQU4vTCEm94a/bZ0v6/9SIk19MQ F0Ee1F0qbUVwSemYYS8B0R7EFhainrpLcSYJfAkmBunfLHy+rAz3bA0hoIKSGQngO/ cIPFcGuimBAdilkEnbSW0QeZQmKxkkGeI5hHnfcU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Bixuan Cui , Sasha Levin Subject: [PATCH 5.4 061/184] usb: musb: fix PM reference leak in musb_irq_work() Date: Mon, 10 May 2021 12:19:15 +0200 Message-Id: <20210510101952.207680162@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210510101950.200777181@linuxfoundation.org> References: <20210510101950.200777181@linuxfoundation.org> User-Agent: quilt/0.66 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: Bixuan Cui [ Upstream commit 9535b99533904e9bc1607575aa8e9539a55435d7 ] pm_runtime_get_sync will increment pm usage counter even it failed. thus a pairing decrement is needed. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Reported-by: Hulk Robot Signed-off-by: Bixuan Cui Link: https://lore.kernel.org/r/20210408091836.55227-1-cuibixuan@huawei.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/musb/musb_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 166f68f639c2..70ef603f7bb9 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1932,7 +1932,7 @@ static void musb_irq_work(struct work_struct *data) struct musb *musb = container_of(data, struct musb, irq_work.work); int error; - error = pm_runtime_get_sync(musb->controller); + error = pm_runtime_resume_and_get(musb->controller); if (error < 0) { dev_err(musb->controller, "Could not enable: %i\n", error); -- 2.30.2