From patchwork Tue Sep 20 15:36:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 12982381 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 4BAB8C54EE9 for ; Tue, 20 Sep 2022 15:30:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231556AbiITPaV (ORCPT ); Tue, 20 Sep 2022 11:30:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231543AbiITPaS (ORCPT ); Tue, 20 Sep 2022 11:30:18 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7152C6612C for ; Tue, 20 Sep 2022 08:30:17 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.54]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4MX53j41Szz14Qyk for ; Tue, 20 Sep 2022 23:26:09 +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 23:30:15 +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 23:30:14 +0800 From: Yang Yingliang To: CC: , , , Subject: [PATCH -next 5/5] Input: rotary_encoder - Switch to use dev_err_probe() helper Date: Tue, 20 Sep 2022 23:36:56 +0800 Message-ID: <20220920153656.3486879-5-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220920153656.3486879-1-yangyingliang@huawei.com> References: <20220920153656.3486879-1-yangyingliang@huawei.com> 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 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/misc/rotary_encoder.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c index 6d613f2a017c..e106cab58e8f 100644 --- a/drivers/input/misc/rotary_encoder.c +++ b/drivers/input/misc/rotary_encoder.c @@ -236,12 +236,9 @@ static int rotary_encoder_probe(struct platform_device *pdev) device_property_read_bool(dev, "rotary-encoder,relative-axis"); encoder->gpios = devm_gpiod_get_array(dev, NULL, GPIOD_IN); - if (IS_ERR(encoder->gpios)) { - err = PTR_ERR(encoder->gpios); - if (err != -EPROBE_DEFER) - dev_err(dev, "unable to get gpios: %d\n", err); - return err; - } + if (IS_ERR(encoder->gpios)) + return dev_err_probe(dev, PTR_ERR(encoder->gpios), + "unable to get gpios\n"); if (encoder->gpios->ndescs < 2) { dev_err(dev, "not enough gpios found\n"); return -EINVAL;