From patchwork Tue Sep 24 07:46:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tudor Ambarus X-Patchwork-Id: 1166408 X-Patchwork-Delegate: tudor.ambarus@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=microchip.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="qTH3dAlh"; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=microchiptechnology.onmicrosoft.com header.i=@microchiptechnology.onmicrosoft.com header.b="PKEv6tkU"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 46ctj459ctz9sP7 for ; Tue, 24 Sep 2019 17:53:12 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:In-Reply-To:References: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=L41OvyFe4nuDN9LuRsOT3hg7I8M5Z/DUpAGkF1DEPIY=; b=qTH3dAlhI0V+2v mfBx+YSPKjVi2v6DId4NOPFxpK2CYdzJPjGupjbIkk6XDm2cQ5WxeB4zsLM7Hhs3KFBrvWqRGWh6c PaNESDDuB0HhR3QwbfHqJwHXskCi3F+w0bWtRA3n5asooHRMtCthrWQJNDCSkve9RPVhlR/ivmb4K 8HT4chP3kr01pwX39mQNgr/4yWnL1qUAaAdRjFNPY6CskE2SChyNu+qUpvOKRnKt2FNW0q6GUvRO3 y/BgcisTImwha+wWsS0ETKic06zbzusb3iIsHNjh6Jhm3aHjPT25DXQ8w+zfsPLQZLmMkTDJbRTwC DXfr2zuf4g1TA337xoYA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iCfdG-0001yQ-3w; Tue, 24 Sep 2019 07:53:10 +0000 Received: from esa1.microchip.iphmx.com ([68.232.147.91]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iCfWi-00047V-P4; Tue, 24 Sep 2019 07:46:29 +0000 Received-SPF: Pass (esa1.microchip.iphmx.com: domain of Tudor.Ambarus@microchip.com designates 198.175.253.82 as permitted sender) identity=mailfrom; client-ip=198.175.253.82; receiver=esa1.microchip.iphmx.com; envelope-from="Tudor.Ambarus@microchip.com"; x-sender="Tudor.Ambarus@microchip.com"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 mx a:ushub1.microchip.com a:smtpout.microchip.com a:mx1.microchip.iphmx.com a:mx2.microchip.iphmx.com include:servers.mcsv.net include:mktomail.com include:spf.protection.outlook.com ~all" Received-SPF: None (esa1.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@email.microchip.com) identity=helo; client-ip=198.175.253.82; receiver=esa1.microchip.iphmx.com; envelope-from="Tudor.Ambarus@microchip.com"; x-sender="postmaster@email.microchip.com"; x-conformance=spf_only Authentication-Results: esa1.microchip.iphmx.com; spf=Pass smtp.mailfrom=Tudor.Ambarus@microchip.com; spf=None smtp.helo=postmaster@email.microchip.com; dkim=pass (signature verified) header.i=@microchiptechnology.onmicrosoft.com; dmarc=pass (p=none dis=none) d=microchip.com IronPort-SDR: AeeKypm3Xj/W1eNi36X2wMUDgg+HYWCJYiHRscqgxOyoo/lmaUv6LJf8RFWQqKDcqYdHvMz88l wmB6Uleu8NwmZMBDElB3Pa6ReuAPnGW186eEfgrDZ7iWjQ5u9KsUKWLAPt/fntG06dMh3l2sri nxvo4vathy4R7jtiaYz/mQ0wygiPFn/cefeN6c2niFEdPwB/LY/+O6C8mX+Ghhv76FmLMkS2CD vK4u+wiPsYHUxQEkQm8m5t8OraXwfMziILS3AfIv9t+KnFq9lDl3+vH91KZebikJ7+eRp48Aw9 +Vw= X-IronPort-AV: E=Sophos;i="5.64,543,1559545200"; d="scan'208";a="51606460" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 24 Sep 2019 00:46:24 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Tue, 24 Sep 2019 00:46:23 -0700 Received: from NAM01-SN1-obe.outbound.protection.outlook.com (10.10.215.89) by email.microchip.com (10.10.87.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Frontend Transport; Tue, 24 Sep 2019 00:46:23 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Rx577mspXttT/nG+BrJgncgqlH6qUCS3IL/OUnFg2th9G4lpZ/WBDvsA2UZhnubM2gQICsaIE+X9rUpUi5hLfLVtKygLscEbKic0297renVylXSXBg/LL3sK7+KHTGoiT8lElTkvyzChrCGde7YYPUlOugTcstRu9iyRiAKtvw2rdP6rWn8kgBb37WY1hyCwtsLiQNgPe3Vj7kwlMLSIOGbdMVSCWTqZ8jdMGszCUH5D+ub6DzeWB0ZHTFnqReMEIxZXiggsr9VLM7kZi90gvpjtyLID4SYGDV96gXmBv+EO4MtTteesRdQCtLr9/DwAZjmmTydiflDJhGeDQqAaug== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=13mIgWj2Z1NMMHDpfeVOINAzw2daSFAmJ2a/ygFXfBo=; b=UNyQjW0iPdLVrk4l8O6a+9WZNu1BSsavbZRgGwT9juI2dio/cifje2Vgj3vSuFX3rZnTZblKVkPcL63hdzqECijqgCqOzg1i/Xi4lRPYBquuS2qIEwtiwSYUSzydVYrVSe2lIHgfcrw/7ZUAWbaymYqsl+9xecsZuuQHbKQ22cA/50us8rt2XoTXqz1IxdkHcbPkRg5mv0mQbxJj30yrdNpenVfH7zUr/LzSEAQUn5RrwJOco+CIk9eeFB5rNg2ypY7LL/AdBctiTNw0c52CMH1QzX4fdwCZnN3+aUd+YcvtKv890dmWuoBHhVonLsF2bv4fTd5s79p0NfDEM7kpbA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=microchip.com; dmarc=pass action=none header.from=microchip.com; dkim=pass header.d=microchip.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=microchiptechnology.onmicrosoft.com; s=selector2-microchiptechnology-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=13mIgWj2Z1NMMHDpfeVOINAzw2daSFAmJ2a/ygFXfBo=; b=PKEv6tkUVma53PnxostQQwkNhqP4RgY+eWkTsz9zopGmhTE0dQnIwli3x0suFNs7q+YBfgwebcPYCk1uQVnlxSJZTYwnXTEnEIJ2Z/GqWE3yt/uCsK0ItO1FgQXDTmqCyQlU1BBKxM1zPysbkGiDFjTto+KuzRP5KlXiMsW8/v8= Received: from MN2PR11MB4448.namprd11.prod.outlook.com (52.135.39.157) by MN2PR11MB4319.namprd11.prod.outlook.com (52.135.39.155) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2284.26; Tue, 24 Sep 2019 07:46:21 +0000 Received: from MN2PR11MB4448.namprd11.prod.outlook.com ([fe80::c951:b15a:e4b3:30f7]) by MN2PR11MB4448.namprd11.prod.outlook.com ([fe80::c951:b15a:e4b3:30f7%7]) with mapi id 15.20.2284.023; Tue, 24 Sep 2019 07:46:21 +0000 From: To: , , , , , Subject: [PATCH v2 09/22] mtd: spi-nor: Fix retlen handling in sst_write() Thread-Topic: [PATCH v2 09/22] mtd: spi-nor: Fix retlen handling in sst_write() Thread-Index: AQHVcqwocr2G1vTqBEOgTu/C0BezHA== Date: Tue, 24 Sep 2019 07:46:21 +0000 Message-ID: <20190924074533.6618-10-tudor.ambarus@microchip.com> References: <20190924074533.6618-1-tudor.ambarus@microchip.com> In-Reply-To: <20190924074533.6618-1-tudor.ambarus@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR0101CA0082.eurprd01.prod.exchangelabs.com (2603:10a6:800:1f::50) To MN2PR11MB4448.namprd11.prod.outlook.com (2603:10b6:208:193::29) x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.9.5 x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6b336001-b099-4285-141c-08d740c34af3 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600167)(711020)(4605104)(1401327)(2017052603328)(7193020); SRVR:MN2PR11MB4319; x-ms-traffictypediagnostic: MN2PR11MB4319: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6108; x-forefront-prvs: 0170DAF08C x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(1496009)(366004)(396003)(136003)(346002)(39860400002)(376002)(189003)(199004)(5660300002)(2201001)(6436002)(256004)(86362001)(11346002)(14454004)(476003)(2501003)(305945005)(186003)(2616005)(26005)(386003)(102836004)(6506007)(25786009)(6486002)(8936002)(81156014)(2906002)(3846002)(81166006)(107886003)(7736002)(8676002)(6512007)(486006)(36756003)(52116002)(71200400001)(71190400001)(50226002)(446003)(66446008)(76176011)(99286004)(66946007)(4326008)(66476007)(64756008)(66556008)(6116002)(54906003)(110136005)(66066001)(316002)(1076003)(7416002)(478600001); DIR:OUT; SFP:1101; SCL:1; SRVR:MN2PR11MB4319; H:MN2PR11MB4448.namprd11.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: iObHnYSACaX6WYGTueeLNm6muhNE0ghwZDWq4d2+Pxx892gtkQKlFLPbb2W68mLxPy+UpXwCRn16y5G00cT958y0r6M2t4HKiYy5gNiKem10b4kD+0BpSxi/thu3dZ3xluJ7o745vGzciF++1xSgpq9FziCXQouNgcad7C2jIxwc2KZtt55AI5KgOdOinBnt5DdxOrPL0TzU/PTKkIaUU/96fU/rNmhzf22xFd5wIyqL/hKyhLsL9UY2wdIm5RmyVoIQJ0n21iaklvKqa52eRcTb+YaSH+0cp0tBH+DSpd0iZ35qcFBhPQLUCxsJbv3fv/ShVJf/gQGFZL1ZJAJDxtzezIH6bl1gbXzISkTeJpkbp043AEkjj5qWHj21aKKTf+9J2XMNqGNMU6VmhsVOmULGCSE15QtSBwwdHCOSVC0= MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 6b336001-b099-4285-141c-08d740c34af3 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Sep 2019 07:46:21.8298 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: grlkVu7aXMILsCTffjnes7Y6copDMdfLNyH3YzTgYDdJ+4HD6TG82SbvL0OLQ205QkAsGyIiqN++YLPIKdwD12/xJZFy4Xs7traHYBl8cQc= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB4319 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190924_004625_266136_D64B1FB6 X-CRM114-Status: GOOD ( 11.35 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [68.232.147.91 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, Tudor.Ambarus@microchip.com, andrew@aj.id.au, richard@nod.at, linux-kernel@vger.kernel.org, vz@mleia.com, linux-mediatek@lists.infradead.org, joel@jms.id.au, miquel.raynal@bootlin.com, matthias.bgg@gmail.com, computersforpeace@gmail.com, dwmw2@infradead.org, linux-arm-kernel@lists.infradead.org Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Tudor Ambarus In case the write of the first byte failed, retlen was incorrectly incremented to *retlen += actual; on the exit path. retlen should be incremented when actual data was written to the flash. Rename 'sst_write_err' label to 'out' as it is no longer generic for all the write errors in the sst_write() method, and may introduce confusion. Signed-off-by: Tudor Ambarus --- drivers/mtd/spi-nor/spi-nor.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 0aee068a5835..be5dee622d51 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -2665,12 +2665,12 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len, /* write one byte. */ ret = spi_nor_write_data(nor, to, 1, buf); if (ret < 0) - goto sst_write_err; + goto unlock_and_unprep; WARN(ret != 1, "While writing 1 byte written %i bytes\n", (int)ret); ret = spi_nor_wait_till_ready(nor); if (ret) - goto sst_write_err; + goto unlock_and_unprep; } to += actual; @@ -2681,12 +2681,12 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len, /* write two bytes. */ ret = spi_nor_write_data(nor, to, 2, buf + actual); if (ret < 0) - goto sst_write_err; + goto out; WARN(ret != 2, "While writing 2 bytes written %i bytes\n", (int)ret); ret = spi_nor_wait_till_ready(nor); if (ret) - goto sst_write_err; + goto out; to += 2; nor->sst_write_second = true; } @@ -2694,35 +2694,35 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len, ret = spi_nor_write_disable(nor); if (ret) - goto sst_write_err; + goto out; ret = spi_nor_wait_till_ready(nor); if (ret) - goto sst_write_err; + goto out; /* Write out trailing byte if it exists. */ if (actual != len) { ret = spi_nor_write_enable(nor); if (ret) - goto sst_write_err; + goto out; nor->program_opcode = SPINOR_OP_BP; ret = spi_nor_write_data(nor, to, 1, buf + actual); if (ret < 0) - goto sst_write_err; + goto out; WARN(ret != 1, "While writing 1 byte written %i bytes\n", (int)ret); ret = spi_nor_wait_till_ready(nor); if (ret) - goto sst_write_err; + goto out; ret = spi_nor_write_disable(nor); if (ret) - goto sst_write_err; + goto out; actual += 1; } -sst_write_err: +out: *retlen += actual; unlock_and_unprep: spi_nor_unlock_and_unprep(nor, SPI_NOR_OPS_WRITE);