From patchwork Tue Feb 2 11:55:06 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 8189371 Return-Path: X-Original-To: patchwork-linux-mmc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EA83D9F4DD for ; Tue, 2 Feb 2016 11:59:08 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 27CE92027D for ; Tue, 2 Feb 2016 11:59:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E63082026D for ; Tue, 2 Feb 2016 11:59:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754775AbcBBL7F (ORCPT ); Tue, 2 Feb 2016 06:59:05 -0500 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:18155 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754699AbcBBL7E (ORCPT ); Tue, 2 Feb 2016 06:59:04 -0500 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.15.0.59/8.15.0.59) with SMTP id u12BtAww020492; Tue, 2 Feb 2016 03:58:41 -0800 Received: from sc-exch03.marvell.com ([199.233.58.183]) by mx0a-0016f401.pphosted.com with ESMTP id 20svyv5286-1 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 02 Feb 2016 03:58:41 -0800 Received: from SC-EXCH02.marvell.com (10.93.176.82) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Tue, 2 Feb 2016 03:58:40 -0800 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH02.marvell.com (10.93.176.82) with Microsoft SMTP Server id 15.0.1104.5 via Frontend Transport; Tue, 2 Feb 2016 03:58:40 -0800 Received: from xhacker.marvell.com (unknown [10.37.135.134]) by maili.marvell.com (Postfix) with ESMTP id 98C2F3F703F; Tue, 2 Feb 2016 03:58:39 -0800 (PST) From: Jisheng Zhang To: , CC: , , , Jisheng Zhang Subject: [PATCH v2] mmc: sdhci-of-at91: fix pm runtime unbalanced issue in error path Date: Tue, 2 Feb 2016 19:55:06 +0800 Message-ID: <1454414106-4441-1-git-send-email-jszhang@marvell.com> X-Mailer: git-send-email 2.7.0 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-02-02_08:, , signatures=0 X-Proofpoint-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1601100000 definitions=main-1602020202 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The device power usage counter is increased by pm_runtime_get_noresume but isn't decreased in err_add_host error path. Fix this issue by calling pm_runtime_put_noidle() in the error path to restore the device's power usage counter. Signed-off-by: Jisheng Zhang Acked-by: Ludovic Desroches Fixes: f5f17813ae9b ("mmc: sdhci-of-at91: add PM support) --- Since v1: - Add Ludovic ack - address Ulf's comment drivers/mmc/host/sdhci-of-at91.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c index 7db7163..35c02fc 100644 --- a/drivers/mmc/host/sdhci-of-at91.c +++ b/drivers/mmc/host/sdhci-of-at91.c @@ -211,6 +211,7 @@ static int sdhci_at91_probe(struct platform_device *pdev) pm_runtime_disable: pm_runtime_disable(&pdev->dev); pm_runtime_set_suspended(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); clocks_disable_unprepare: clk_disable_unprepare(priv->gck); clk_disable_unprepare(priv->mainck);