From patchwork Wed Aug 29 02:10:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 10579429 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A3FDD920 for ; Wed, 29 Aug 2018 02:12:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9224F2AF48 for ; Wed, 29 Aug 2018 02:12:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 83A562AF58; Wed, 29 Aug 2018 02:12:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 22EBE2AF48 for ; 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Wed, 29 Aug 2018 02:12:11 +0000 Received: from [1.203.163.78] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fupx7-0002B1-IN; Wed, 29 Aug 2018 02:11:37 +0000 X-UUID: 30ff73dda0cc4a7795c0a6e9bb28f1c7-20180829 Received: from mtkcas35.mediatek.inc [(172.27.4.250)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 598083430; Wed, 29 Aug 2018 10:11:02 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by MTKMBS31N1.mediatek.inc (172.27.4.69) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Wed, 29 Aug 2018 10:10:58 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Wed, 29 Aug 2018 10:10:57 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Felipe Balbi Subject: [PATCH v2] usb: core: phy: fix return value checking about devm_of_phy_get_by_index() Date: Wed, 29 Aug 2018 10:10:48 +0800 Message-ID: <8263a8d0f87d595dd35efa5432d294d9f7b38719.1535507412.git.chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180828_191125_802801_85B0AF58 X-CRM114-Status: GOOD ( 10.47 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Martin Blumenstingl , linux-usb@vger.kernel.org, Johan Hovold , linux-kernel@vger.kernel.org, Chunfeng Yun , linux-mediatek@lists.infradead.org, Matthias Brugger , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Use IS_ERR() instead of IS_ERR_OR_NULL() because devm_of_phy_get_by_index() never return NULL value; But still need ignore the error of -ENODEV, for more information, please refer to: [0] https://lkml.org/lkml/2018/4/19/88 [1] https://patchwork.kernel.org/patch/10160181/ Signed-off-by: Chunfeng Yun --- V2: keep the -ENODEV check --- drivers/usb/core/phy.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/usb/core/phy.c b/drivers/usb/core/phy.c index 9879767..e3cc743 100644 --- a/drivers/usb/core/phy.c +++ b/drivers/usb/core/phy.c @@ -23,14 +23,11 @@ static int usb_phy_roothub_add_phy(struct device *dev, int index, struct list_head *list) { struct usb_phy_roothub *roothub_entry; - struct phy *phy = devm_of_phy_get_by_index(dev, dev->of_node, index); + struct phy *phy; - if (IS_ERR_OR_NULL(phy)) { - if (!phy || PTR_ERR(phy) == -ENODEV) - return 0; - else - return PTR_ERR(phy); - } + phy = devm_of_phy_get_by_index(dev, dev->of_node, index); + if (IS_ERR(phy)) + return (PTR_ERR(phy) == -ENODEV) ? 0 : PTR_ERR(phy); roothub_entry = devm_kzalloc(dev, sizeof(*roothub_entry), GFP_KERNEL); if (!roothub_entry)