From nobody Tue Nov 4 23:53:48 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; 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 208.118.235.17 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 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1531487489018891.093118688821; Fri, 13 Jul 2018 06:11:29 -0700 (PDT) Received: from localhost ([::1]:37237 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fdxr5-0004zh-NM for importer@patchew.org; Fri, 13 Jul 2018 09:11:27 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40962) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fdxp5-0003fE-LU for qemu-devel@nongnu.org; Fri, 13 Jul 2018 09:09:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fdxp4-0001Hg-NZ for qemu-devel@nongnu.org; Fri, 13 Jul 2018 09:09:23 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:57088 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 1fdxp4-0001Fa-Ir for qemu-devel@nongnu.org; Fri, 13 Jul 2018 09:09:22 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 459A3C12A5 for ; Fri, 13 Jul 2018 13:09:22 +0000 (UTC) Received: from localhost (unknown [10.36.112.12]) by smtp.corp.redhat.com (Postfix) with ESMTP id E64E02156889; Fri, 13 Jul 2018 13:09:21 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Fri, 13 Jul 2018 15:08:50 +0200 Message-Id: <20180713130916.4153-4-marcandre.lureau@redhat.com> In-Reply-To: <20180713130916.4153-1-marcandre.lureau@redhat.com> References: <20180713130916.4153-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Fri, 13 Jul 2018 13:09:22 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Fri, 13 Jul 2018 13:09:22 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'marcandre.lureau@redhat.com' RCPT:'' Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v4 03/29] chardev: unref if underlying chardev has no parent 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: airlied@redhat.com, kraxel@redhat.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" It's possible to write code creating a chardev backend that is not registered. When it is not user-created, it makes sense to keep it hidden. Let the associated frontend destroy it also in this case. Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Daniel P. Berrang=C3=A9 --- chardev/char-fe.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/chardev/char-fe.c b/chardev/char-fe.c index f158f158f8..a8931f7afd 100644 --- a/chardev/char-fe.c +++ b/chardev/char-fe.c @@ -235,7 +235,12 @@ void qemu_chr_fe_deinit(CharBackend *b, bool del) d->backends[b->tag] =3D NULL; } if (del) { - object_unparent(OBJECT(b->chr)); + Object *obj =3D OBJECT(b->chr); + if (obj->parent) { + object_unparent(obj); + } else { + object_unref(obj); + } } b->chr =3D NULL; } --=20 2.18.0.129.ge3331758f1