From patchwork Thu Sep 16 15:31:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 513312 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 6FF21C433FE for ; Thu, 16 Sep 2021 15:46:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5737B61164 for ; Thu, 16 Sep 2021 15:46:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238634AbhIPPsL (ORCPT ); Thu, 16 Sep 2021 11:48:11 -0400 Received: from mx24.baidu.com ([111.206.215.185]:43846 "EHLO baidu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S239031AbhIPPsL (ORCPT ); Thu, 16 Sep 2021 11:48:11 -0400 Received: from BC-Mail-Ex11.internal.baidu.com (unknown [172.31.51.51]) by Forcepoint Email with ESMTPS id AD6518CB28E8EDB8C47B; Thu, 16 Sep 2021 23:31:09 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-Ex11.internal.baidu.com (172.31.51.51) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.12; Thu, 16 Sep 2021 23:31:09 +0800 Received: from LAPTOP-UKSR4ENP.internal.baidu.com (172.31.63.8) by BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Thu, 16 Sep 2021 23:31:09 +0800 From: Cai Huoqing To: CC: Dmitry Torokhov , , Subject: [PATCH] Input: ads7846 - Make use of the helper function dev_err_probe() Date: Thu, 16 Sep 2021 23:31:03 +0800 Message-ID: <20210916153104.13727-1-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex11.internal.baidu.com (172.31.51.51) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. Using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by: Cai Huoqing --- drivers/input/touchscreen/ads7846.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index eaa8714ad19d..f5c053940cbf 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -1337,11 +1337,8 @@ static int ads7846_probe(struct spi_device *spi) ads7846_setup_spi_msg(ts, pdata); ts->reg = devm_regulator_get(dev, "vcc"); - if (IS_ERR(ts->reg)) { - err = PTR_ERR(ts->reg); - dev_err(dev, "unable to get regulator: %d\n", err); - return err; - } + if (IS_ERR(ts->reg)) + return dev_err_probe(dev, PTR_ERR(ts->reg), "unable to get regulator\n"); err = regulator_enable(ts->reg); if (err) {