From patchwork Tue Sep 20 15:30:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 607840 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E233C6FA90 for ; Tue, 20 Sep 2022 15:24:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229598AbiITPYE (ORCPT ); Tue, 20 Sep 2022 11:24:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230460AbiITPYC (ORCPT ); Tue, 20 Sep 2022 11:24:02 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2272065574 for ; Tue, 20 Sep 2022 08:24:01 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4MX4wS3bJDz14R0M for ; Tue, 20 Sep 2022 23:19:52 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 20 Sep 2022 23:23:58 +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 15.1.2375.31; Tue, 20 Sep 2022 23:23:57 +0800 From: Yang Yingliang To: CC: Subject: [PATCH -next 1/4] Input: adc-joystick - Switch to use dev_err_probe() helper Date: Tue, 20 Sep 2022 23:30:52 +0800 Message-ID: <20220920153055.3465115-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org In the probe path, dev_err() can be replaced with dev_err_probe() which will check if error code is -EPROBE_DEFER and prints the error name. It also sets the defer probe reason which can be checked later through debugfs. Signed-off-by: Yang Yingliang --- drivers/input/joystick/adc-joystick.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/input/joystick/adc-joystick.c b/drivers/input/joystick/adc-joystick.c index c0deff5d4282..3590d845e381 100644 --- a/drivers/input/joystick/adc-joystick.c +++ b/drivers/input/joystick/adc-joystick.c @@ -201,12 +201,9 @@ static int adc_joystick_probe(struct platform_device *pdev) return -ENOMEM; joy->chans = devm_iio_channel_get_all(dev); - if (IS_ERR(joy->chans)) { - error = PTR_ERR(joy->chans); - if (error != -EPROBE_DEFER) - dev_err(dev, "Unable to get IIO channels"); - return error; - } + if (IS_ERR(joy->chans)) + return dev_err_probe(dev, PTR_ERR(joy->chans), + "Unable to get IIO channels\n"); error = device_property_read_u32(dev, "poll-interval", &poll_interval); if (error) {