From patchwork Fri Sep 7 22:08:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bandan Das X-Patchwork-Id: 967529 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 426Wtk4KkPz9s47 for ; Sat, 8 Sep 2018 08:14:05 +1000 (AEST) Received: from localhost ([::1]:40519 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fyP0s-0000tE-6q for incoming@patchwork.ozlabs.org; Fri, 07 Sep 2018 18:14:02 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39391) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fyOw4-0005FR-G7 for qemu-devel@nongnu.org; Fri, 07 Sep 2018 18:09:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fyOw1-0001c1-JN for qemu-devel@nongnu.org; Fri, 07 Sep 2018 18:09:04 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:52070 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fyOw1-0001SG-9z for qemu-devel@nongnu.org; Fri, 07 Sep 2018 18:09:01 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3408F401EF2C for ; Fri, 7 Sep 2018 22:09:00 +0000 (UTC) Received: from gigantic.usersys.redhat.com (dhcp-17-169.bos.redhat.com [10.18.17.169]) by smtp.corp.redhat.com (Postfix) with ESMTP id 18FDAA9E67; Fri, 7 Sep 2018 22:09:00 +0000 (UTC) From: Bandan Das To: qemu-devel@nongnu.org Date: Fri, 7 Sep 2018 18:08:49 -0400 Message-Id: <20180907220851.9658-2-bsd@redhat.com> In-Reply-To: <20180907220851.9658-1-bsd@redhat.com> References: <20180907220851.9658-1-bsd@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 07 Sep 2018 22:09:00 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 07 Sep 2018 22:09:00 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'bsd@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v2 1/3] usb-mtp: fix error conditions for write operation X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kraxel@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Bandan Return STORE_FULL if we can't write all the bytes but return incomplete transfer if data received is less then what was specified in the metadata. Also, use d->offset as the file size which is valid for all file sizes. Signed-off-by: Bandan --- hw/usb/dev-mtp.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 3fdc4b0da1..15edf3bb82 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1665,13 +1665,14 @@ static void usb_mtp_write_data(MTPState *s) goto success; } - rc = write_retry(d->fd, d->data, s->dataset.size); - if (!rc) { + rc = write_retry(d->fd, d->data, d->offset); + if (rc != d->offset) { usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, 0, 0, 0, 0); goto done; } - if (rc != s->dataset.size) { + /* Only for < 4G file sizes */ + if (s->dataset.size != 0xFFFFFFFF && rc != s->dataset.size) { usb_mtp_queue_result(s, RES_INCOMPLETE_TRANSFER, d->trans, 0, 0, 0, 0); goto done;