From patchwork Mon Dec 28 13:51:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Yongjun X-Patchwork-Id: 352845 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,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 25119C04E84 for ; Mon, 28 Dec 2020 15:33:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 00CC522475 for ; Mon, 28 Dec 2020 15:33:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406932AbgL1Nvf (ORCPT ); Mon, 28 Dec 2020 08:51:35 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:10086 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406922AbgL1Nvd (ORCPT ); Mon, 28 Dec 2020 08:51:33 -0500 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4D4Jnm3qbhzMBTJ; Mon, 28 Dec 2020 21:49:48 +0800 (CST) Received: from ubuntu.network (10.175.138.68) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.498.0; Mon, 28 Dec 2020 21:50:41 +0800 From: Zheng Yongjun To: , CC: Zheng Yongjun Subject: [PATCH -next] i2c: busses: Use DEFINE_SPINLOCK() for spinlock Date: Mon, 28 Dec 2020 21:51:20 +0800 Message-ID: <20201228135120.28678-1-zhengyongjun3@huawei.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-Originating-IP: [10.175.138.68] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Signed-off-by: Zheng Yongjun --- drivers/i2c/busses/i2c-elektor.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c index 140426db28df..671f9ac8387e 100644 --- a/drivers/i2c/busses/i2c-elektor.c +++ b/drivers/i2c/busses/i2c-elektor.c @@ -49,7 +49,7 @@ static int mmapped; static wait_queue_head_t pcf_wait; static int pcf_pending; -static spinlock_t lock; +static DEFINE_SPINLOCK(lock); static struct i2c_adapter pcf_isa_ops; @@ -132,7 +132,6 @@ static irqreturn_t pcf_isa_handler(int this_irq, void *dev_id) { static int pcf_isa_init(void) { - spin_lock_init(&lock); if (!mmapped) { if (!request_region(base, 2, pcf_isa_ops.name)) { printk(KERN_ERR "%s: requested I/O region (%#x:2) is "