From patchwork Mon Jun 27 08:08:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 1648781 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4LWg8Z0TFMz9sfG for ; Mon, 27 Jun 2022 17:58:38 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232576AbiF0H6d (ORCPT ); Mon, 27 Jun 2022 03:58:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34588 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233212AbiF0H6a (ORCPT ); Mon, 27 Jun 2022 03:58:30 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C21B2B3; Mon, 27 Jun 2022 00:58:27 -0700 (PDT) Received: from dggpemm500024.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4LWg6q4d1BzkWfM; Mon, 27 Jun 2022 15:57:07 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500024.china.huawei.com (7.185.36.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 27 Jun 2022 15:58:25 +0800 Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 27 Jun 2022 15:58:24 +0800 From: Yang Yingliang To: , CC: , , , Subject: [PATCH -next v2] rtc: rv8803: fix missing unlock on error in rv8803_set_time() Date: Mon, 27 Jun 2022 16:08:22 +0800 Message-ID: <20220627080822.3881072-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org Add the missing unlock before return from function rv8803_set_time() in the error handling case. Fixes: f8176e0bb83f ("rtc: rv8803: initialize registers on post-probe voltage loss") Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Reviewed-by: Sascha Hauer --- v2: correct fix tag. --- drivers/rtc/rtc-rv8803.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c index fe1247e771b9..3527a0521e9b 100644 --- a/drivers/rtc/rtc-rv8803.c +++ b/drivers/rtc/rtc-rv8803.c @@ -315,8 +315,10 @@ static int rv8803_set_time(struct device *dev, struct rtc_time *tm) if (flags & RV8803_FLAG_V2F) { ret = rv8803_regs_reset(rv8803); - if (ret) + if (ret) { + mutex_unlock(&rv8803->flags_lock); return ret; + } } ret = rv8803_write_reg(rv8803->client, RV8803_FLAG,