From patchwork Tue Feb 8 10:02:42 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrian Hunter X-Patchwork-Id: 82281 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id AF54EB7101 for ; Tue, 8 Feb 2011 21:05:15 +1100 (EST) Received: from canuck.infradead.org ([2001:4978:20e::1]) by bombadil.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1PmkQD-0000ix-Hw; Tue, 08 Feb 2011 10:03:45 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.72 #1 (Red Hat Linux)) id 1PmkQC-0000KG-5G; Tue, 08 Feb 2011 10:03:44 +0000 Received: from smtp.nokia.com ([147.243.128.24] helo=mgw-da01.nokia.com) by canuck.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1PmkQ4-0000Je-2z for linux-mtd@lists.infradead.org; Tue, 08 Feb 2011 10:03:37 +0000 Received: from nokia.com (localhost [127.0.0.1]) by mgw-da01.nokia.com (Switch-3.4.3/Switch-3.4.3) with ESMTP id p18A2xbb009045; Tue, 8 Feb 2011 12:03:30 +0200 Received: from localhost.localdomain ([[172.21.23.234]]) by mgw-da01.nokia.com with RELAY id p18A2gkT008724 ; Tue, 8 Feb 2011 12:03:00 +0200 From: Adrian Hunter To: David Woodhouse Subject: [PATCH 5/5] mtd: onenand_base: onenand_verify bugfix for writepage non-aligned address Date: Tue, 8 Feb 2011 12:02:42 +0200 Message-Id: <1297159362-8407-6-git-send-email-adrian.hunter@nokia.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1297159362-8407-1-git-send-email-adrian.hunter@nokia.com> References: <1297159362-8407-1-git-send-email-adrian.hunter@nokia.com> X-Nokia-AV: Clean X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110208_050336_399594_D4FE1CA8 X-CRM114-Status: GOOD ( 11.48 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [147.243.128.24 listed in list.dnswl.org] -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain Cc: Kyungmin Park , Adrian Hunter , linux-mtd Mailing List , Roman Tereshonkov , Artem Bityutskiy X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-mtd-bounces@lists.infradead.org Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Roman Tereshonkov In onenand_verify function the address can be writepage non-aligned. When a page is read for comparing the right offset should be used for "this->verify_buf" to get the right matching with compared "buf" buffer. Signed-off-by: Roman Tereshonkov Signed-off-by: Adrian Hunter Acked-by: Kyungmin Park --- drivers/mtd/onenand/onenand_base.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 38e6d76..4205b94 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1648,11 +1648,10 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, int ret = 0; int thislen, column; + column = addr & (this->writesize - 1); + while (len != 0) { - thislen = min_t(int, this->writesize, len); - column = addr & (this->writesize - 1); - if (column + thislen > this->writesize) - thislen = this->writesize - column; + thislen = min_t(int, this->writesize - column, len); this->command(mtd, ONENAND_CMD_READ, addr, this->writesize); @@ -1666,12 +1665,13 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize); - if (memcmp(buf, this->verify_buf, thislen)) + if (memcmp(buf, this->verify_buf + column, thislen)) return -EBADMSG; len -= thislen; buf += thislen; addr += thislen; + column = 0; } return 0;