From nobody Sun Feb 8 15:46:43 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=virtuozzo.com ARC-Seal: i=1; a=rsa-sha256; t=1570812324; cv=none; d=zoho.com; s=zohoarc; b=BInSsuCy7ngtyRHeeGd4P12+8Mgp9lwHrZ2KlJzLJ/IQeLj/atGx/ksYrmow/PDBt11xKxDdlHjAeuVnXXqQS0QfTF8gBA0nBoXCXcudRuPXvaIWmd8z2pIWES4dtDfSech3XKZtip7DsFq+C5YRsU4us7slWbz8g1Lgdp113lM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1570812324; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=CzIlmoiOlMyM3OXqDCZB8pSV9/Xv0MN+F0U3FxVtyW4=; b=G5lLYOmcsznO1UgP9rRlZ5ywRZXf2ixy2f0nCs527ozHao1yIK1ZhqpJTK9zId3/AUWfcK4XA3WWa1gXC29iZHV4qpVmDm1pnwPSsWHz+uR1pVsToD9Iwsfx+qksNaTX7+d+YyPwMWfczXsUUmFAkC+KnEvaPVesqcg+yR2zkCc= ARC-Authentication-Results: i=1; mx.zoho.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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1570812324829318.76440269953434; Fri, 11 Oct 2019 09:45:24 -0700 (PDT) Received: from localhost ([::1]:54102 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIy2b-0001Aw-Oc for importer@patchew.org; Fri, 11 Oct 2019 12:45:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36338) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIxQv-0006E6-9Y for qemu-devel@nongnu.org; Fri, 11 Oct 2019 12:06:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iIxQu-0004RF-0g for qemu-devel@nongnu.org; Fri, 11 Oct 2019 12:06:25 -0400 Received: from relay.sw.ru ([185.231.240.75]:48044) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iIxQt-0004DL-Pu for qemu-devel@nongnu.org; Fri, 11 Oct 2019 12:06:23 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92.2) (envelope-from ) id 1iIxQi-0003XG-C1; Fri, 11 Oct 2019 19:06:12 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org Subject: [RFC v5 049/126] USB (serial adapter): introduce ERRP_AUTO_PROPAGATE Date: Fri, 11 Oct 2019 19:04:35 +0300 Message-Id: <20191011160552.22907-50-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191011160552.22907-1-vsementsov@virtuozzo.com> References: <20191011160552.22907-1-vsementsov@virtuozzo.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 185.231.240.75 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , vsementsov@virtuozzo.com, armbru@redhat.com, Greg Kurz , Gerd Hoffmann , Samuel Thibault Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" If we want to add some info to errp (by error_prepend() or error_append_hint()), we must use the ERRP_AUTO_PROPAGATE macro. Otherwise, this info will not be added when errp =3D=3D &fatal_err (the program will exit prior to the error_append_hint() or error_prepend() call). Fix such cases. If we want to check error after errp-function call, we need to introduce local_err and than propagate it to errp. Instead, use ERRP_AUTO_PROPAGATE macro, benefits are: 1. No need of explicit error_propagate call 2. No need of explicit local_err variable: use errp directly 3. ERRP_AUTO_PROPAGATE leaves errp as is if it's not NULL or &error_fatel, this means that we don't break error_abort (we'll abort on error_set, not on error_propagate) This commit (together with its neighbors) was generated by for f in $(git grep -l errp \*.[ch]); do \ spatch --sp-file scripts/coccinelle/auto-propagated-errp.cocci \ --macro-file scripts/cocci-macro-file.h --in-place --no-show-diff $f; \ done; then fix a bit of compilation problems: coccinelle for some reason leaves several f() { ... goto out; ... out: } patterns, with "out:" at function end. then ./python/commit-per-subsystem.py MAINTAINERS "$(< auto-msg)" (auto-msg was a file with this commit message) Still, for backporting it may be more comfortable to use only the first command and then do one huge commit. Reported-by: Kevin Wolf Reported-by: Greg Kurz Signed-off-by: Vladimir Sementsov-Ogievskiy --- hw/usb/dev-serial.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c index 45cc74128a..72959b4005 100644 --- a/hw/usb/dev-serial.c +++ b/hw/usb/dev-serial.c @@ -484,8 +484,8 @@ static void usb_serial_event(void *opaque, int event) =20 static void usb_serial_realize(USBDevice *dev, Error **errp) { + ERRP_AUTO_PROPAGATE(); USBSerialState *s =3D USB_SERIAL_DEV(dev); - Error *local_err =3D NULL; =20 usb_desc_create_serial(dev); usb_desc_init(dev); @@ -496,9 +496,8 @@ static void usb_serial_realize(USBDevice *dev, Error **= errp) return; } =20 - usb_check_attach(dev, &local_err); - if (local_err) { - error_propagate(errp, local_err); + usb_check_attach(dev, errp); + if (*errp) { return; } =20 --=20 2.21.0