From patchwork Mon Apr 5 10:14:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Yongjun X-Patchwork-Id: 416242 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=-16.7 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=unavailable 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 E8CACC433B4 for ; Mon, 5 Apr 2021 10:00:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B8EAD61396 for ; Mon, 5 Apr 2021 10:00:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238038AbhDEKAn (ORCPT ); Mon, 5 Apr 2021 06:00:43 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:15481 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232063AbhDEKAn (ORCPT ); Mon, 5 Apr 2021 06:00:43 -0400 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4FDR1Y1wKMzwQMJ; Mon, 5 Apr 2021 17:58:25 +0800 (CST) Received: from localhost.localdomain (10.175.104.82) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.498.0; Mon, 5 Apr 2021 18:00:24 +0800 From: Zheng Yongjun To: , Greg Kroah-Hartman , Madhuparna Bhowmik , Tom Rix CC: , , Hulk Robot Subject: [PATCH -next] usb: host: u132-hcd: use DEFINE_MUTEX() for mutex lock Date: Mon, 5 Apr 2021 18:14:34 +0800 Message-ID: <20210405101434.14878-1-zhengyongjun3@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.104.82] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org mutex lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). Reported-by: Hulk Robot Signed-off-by: Zheng Yongjun --- drivers/usb/host/u132-hcd.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index eb96e1e15b71..5a783c423d8e 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -78,7 +78,7 @@ static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); * u132_module_lock exists to protect access to global variables * */ -static struct mutex u132_module_lock; +static DEFINE_MUTEX(u132_module_lock); static int u132_exiting; static int u132_instances; /* @@ -3190,7 +3190,6 @@ static int __init u132_hcd_init(void) int retval; u132_instances = 0; u132_exiting = 0; - mutex_init(&u132_module_lock); if (usb_disabled()) return -ENODEV; printk(KERN_INFO "driver %s\n", hcd_name);