From patchwork Wed Apr 7 04:07:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dinghao Liu X-Patchwork-Id: 12186785 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 3E66DC433B4 for ; Wed, 7 Apr 2021 04:07:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 020A9613B3 for ; Wed, 7 Apr 2021 04:07:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229588AbhDGEID (ORCPT ); Wed, 7 Apr 2021 00:08:03 -0400 Received: from spam.zju.edu.cn ([61.164.42.155]:25186 "EHLO zju.edu.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229505AbhDGEIC (ORCPT ); Wed, 7 Apr 2021 00:08:02 -0400 Received: from localhost.localdomain (unknown [10.192.24.118]) by mail-app2 (Coremail) with SMTP id by_KCgBH0PgNMG1gwH_RAA--.27407S4; Wed, 07 Apr 2021 12:07:44 +0800 (CST) From: Dinghao Liu To: dinghao.liu@zju.edu.cn, kjlu@umn.edu Cc: Dmitry Torokhov , Fuqian Huang , Benson Leung , Andrzej Pietrasiewicz , Lee Jones , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] Input: cyapa - Fix rumtime PM imbalance on error Date: Wed, 7 Apr 2021 12:07:38 +0800 Message-Id: <20210407040740.20257-1-dinghao.liu@zju.edu.cn> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: by_KCgBH0PgNMG1gwH_RAA--.27407S4 X-Coremail-Antispam: 1UD129KBjvdXoWrtr43Jr4fXr1UAr1xuw1xZrb_yoWfGrX_Gr yruwn7uF15Kw1DtwsxJwnxZrZYva4v934kuw4Yyr42kr1qvrZ5GryUXF4DAr4kXa4xGw15 Jw4IgF9ayrW0kjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbcxFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AK wVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20x vE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1l84ACjcxK6I8E 87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c 8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_ Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwI xGrwACjI8F5VA0II8E6IAqYI8I648v4I1l42xK82IYc2Ij64vIr41l42xK82IY6x8ErcxF aVAv8VW8uw4UJr1UMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr 4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxG rwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8Jw CI42IY6xAIw20EY4v20xvaj40_Wr1j6rW3Jr1lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAI cVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUbXdbUUUUUU== X-CM-SenderInfo: qrrzjiaqtzq6lmxovvfxof0/1tbiAgoGBlZdtTQGhAALsL Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org When mutex_lock_interruptible() fails, a pairing PM usage counter decrement is needed to keep the counter balanced. Signed-off-by: Dinghao Liu --- drivers/input/mouse/cyapa.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c index 77cc653edca2..e411ab45a218 100644 --- a/drivers/input/mouse/cyapa.c +++ b/drivers/input/mouse/cyapa.c @@ -904,8 +904,10 @@ static ssize_t cyapa_update_rt_suspend_scanrate(struct device *dev, pm_runtime_get_sync(dev); error = mutex_lock_interruptible(&cyapa->state_sync_lock); - if (error) + if (error) { + pm_runtime_put_noidle(dev); return error; + } cyapa->runtime_suspend_sleep_time = min_t(u16, time, 1000); cyapa->runtime_suspend_power_mode =