From patchwork Mon Sep 26 14:15:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 12988969 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 213B8C32771 for ; Mon, 26 Sep 2022 15:22:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236247AbiIZPWk (ORCPT ); Mon, 26 Sep 2022 11:22:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236385AbiIZPVe (ORCPT ); Mon, 26 Sep 2022 11:21:34 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 29C8F855BF for ; Mon, 26 Sep 2022 07:08:32 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.54]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4Mbl0l6DjFzHpdP; Mon, 26 Sep 2022 22:06:15 +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; Mon, 26 Sep 2022 22:08:30 +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; Mon, 26 Sep 2022 22:08:30 +0800 From: Yang Yingliang To: CC: , , Subject: [PATCH -next resend 3/5] usb: musb: cppi41: Switch to use dev_err_probe() helper Date: Mon, 26 Sep 2022 22:15:08 +0800 Message-ID: <20220926141510.2265523-4-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220926141510.2265523-1-yangyingliang@huawei.com> References: <20220926141510.2265523-1-yangyingliang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-usb@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. It's more simple in error path. Signed-off-by: Yang Yingliang --- drivers/usb/musb/musb_cppi41.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index c963cb8565f2..9589243e8951 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -718,10 +718,8 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller) dc = dma_request_chan(dev->parent, str); if (IS_ERR(dc)) { - ret = PTR_ERR(dc); - if (ret != -EPROBE_DEFER) - dev_err(dev, "Failed to request %s: %d.\n", - str, ret); + ret = dev_err_probe(dev, PTR_ERR(dc), + "Failed to request %s.\n", str); goto err; }