From nobody Mon Feb 9 05:41:39 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1554158694175917.8351128442539; Mon, 1 Apr 2019 15:44:54 -0700 (PDT) Received: from localhost ([127.0.0.1]:37695 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hB5fY-0000zx-0A for importer@patchew.org; Mon, 01 Apr 2019 18:44:44 -0400 Received: from eggs.gnu.org ([209.51.188.92]:49547) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hB4RV-0008O8-F5 for qemu-devel@nongnu.org; Mon, 01 Apr 2019 17:26:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hB4RT-0001RX-QR for qemu-devel@nongnu.org; Mon, 01 Apr 2019 17:26:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:56338) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hB4RT-0001QY-5d for qemu-devel@nongnu.org; Mon, 01 Apr 2019 17:26:07 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1CD90306647D; Mon, 1 Apr 2019 21:17:28 +0000 (UTC) Received: from gigantic.usersys.redhat.com (helium.bos.redhat.com [10.18.17.132]) by smtp.corp.redhat.com (Postfix) with ESMTP id A639A6092F; Mon, 1 Apr 2019 21:17:27 +0000 (UTC) From: Bandan Das To: qemu-devel@nongnu.org Date: Mon, 1 Apr 2019 17:17:12 -0400 Message-Id: <20190401211712.19012-4-bsd@redhat.com> In-Reply-To: <20190401211712.19012-1-bsd@redhat.com> References: <20190401211712.19012-1-bsd@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Mon, 01 Apr 2019 21:17:28 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4 3/3] usb-mtp: refactor the flow of usb_mtp_write_data 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: peter.maydell@linaro.org, kraxel@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" There's no functional change but the flow is (hopefully) more consistent for both file and folder object types. Signed-off-by: Bandan Das --- hw/usb/dev-mtp.c | 57 +++++++++++++++++++++++++----------------------- 1 file changed, 30 insertions(+), 27 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 4dc1317e2e..0afb926719 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1599,7 +1599,7 @@ static int usb_mtp_update_object(MTPObject *parent, c= har *name) return ret; } =20 -static int usb_mtp_write_data(MTPState *s) +static void usb_mtp_write_data(MTPState *s, uint32_t handle) { MTPData *d =3D s->data_out; MTPObject *parent =3D @@ -1616,26 +1616,33 @@ static int usb_mtp_write_data(MTPState *s) if (!parent || !s->write_pending) { usb_mtp_queue_result(s, RES_INVALID_OBJECTINFO, d->trans, 0, 0, 0, 0); - return 1; + return; } =20 if (s->dataset.filename) { path =3D g_strdup_printf("%s/%s", parent->path, s->dataset.fil= ename); if (s->dataset.format =3D=3D FMT_ASSOCIATION) { ret =3D mkdir(path, mask); - goto free; + if (!ret) { + usb_mtp_queue_result(s, RES_OK, d->trans, 3, + QEMU_STORAGE_ID, + s->dataset.parent_handle, + handle); + goto close; + } + goto done; } + d->fd =3D open(path, O_CREAT | O_WRONLY | O_CLOEXEC | O_NOFOLLOW, mask); if (d->fd =3D=3D -1) { - usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, - 0, 0, 0, 0); + ret =3D 1; goto done; } =20 /* Return success if initiator sent 0 sized data */ if (!s->dataset.size) { - goto success; + goto done; } if (d->length !=3D MTP_WRITE_BUF_SZ && !d->pending) { d->write_status =3D WRITE_END; @@ -1647,13 +1654,12 @@ static int usb_mtp_write_data(MTPState *s) rc =3D write_retry(d->fd, d->data, d->data_offset, d->offset - d->data_offset); if (rc !=3D d->data_offset) { - usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, - 0, 0, 0, 0); + ret =3D 1; goto done; } if (d->write_status !=3D WRITE_END) { g_free(path); - return ret; + return; } else { /* * Return an incomplete transfer if file size doesn't match @@ -1665,16 +1671,20 @@ static int usb_mtp_write_data(MTPState *s) usb_mtp_update_object(parent, s->dataset.filename)) { usb_mtp_queue_result(s, RES_INCOMPLETE_TRANSFER, d->trans, 0, 0, 0, 0); - goto done; + goto close; } } } =20 -success: - usb_mtp_queue_result(s, RES_OK, d->trans, - 0, 0, 0, 0); - done: + if (ret) { + usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, + 0, 0, 0, 0); + } else { + usb_mtp_queue_result(s, RES_OK, d->trans, + 0, 0, 0, 0); + } +close: /* * The write dataset is kept around and freed only * on success or if another write request comes in @@ -1683,12 +1693,10 @@ done: close(d->fd); d->fd =3D -1; } -free: g_free(s->dataset.filename); s->dataset.size =3D 0; g_free(path); s->write_pending =3D false; - return ret; } =20 static void usb_mtp_write_metadata(MTPState *s, uint64_t dlen) @@ -1725,16 +1733,11 @@ static void usb_mtp_write_metadata(MTPState *s, uin= t64_t dlen) s->write_pending =3D true; =20 if (s->dataset.format =3D=3D FMT_ASSOCIATION) { - if (usb_mtp_write_data(s)) { - /* next_handle will be allocated to the newly created dir */ - usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, - 0, 0, 0, 0); - return; - } + usb_mtp_write_data(s, next_handle); + } else { + usb_mtp_queue_result(s, RES_OK, d->trans, 3, QEMU_STORAGE_ID, + s->dataset.parent_handle, next_handle); } - - usb_mtp_queue_result(s, RES_OK, d->trans, 3, QEMU_STORAGE_ID, - s->dataset.parent_handle, next_handle); } =20 static void usb_mtp_get_data(MTPState *s, mtp_container *container, @@ -1814,14 +1817,14 @@ static void usb_mtp_get_data(MTPState *s, mtp_conta= iner *container, } else { d->write_status =3D WRITE_START; } - usb_mtp_write_data(s); + usb_mtp_write_data(s, 0); usb_mtp_data_free(s->data_out); s->data_out =3D NULL; return; } if (d->data_offset =3D=3D d->length) { d->pending =3D true; - usb_mtp_write_data(s); + usb_mtp_write_data(s, 0); } break; default: --=20 2.19.2