From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84B7CC432BE for ; Wed, 1 Sep 2021 15:53:24 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 244CD60F3A for ; Wed, 1 Sep 2021 15:53:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 244CD60F3A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:58554 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mLSYF-0000wv-8i for qemu-devel@archiver.kernel.org; Wed, 01 Sep 2021 11:53:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49914) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mLRzd-0005a7-CZ for qemu-devel@nongnu.org; Wed, 01 Sep 2021 11:17:38 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:45832) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mLRzX-0003vI-VY for qemu-devel@nongnu.org; Wed, 01 Sep 2021 11:17:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1630509451; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UnRxZ0EvCWF/R05qBnIV+U/5Ek8nQK1L8oPU8Cstgs0=; b=hUFiYMX/fCfXFyaApWfXa3r5v3/iLgRA6l1QQmAVm+9GNUMTU0AOm38/6k+CHHF+/N+rPD YLsSvEhDeY/6FETERWm3Qo2lItKTz3fzJ9cwCZGF0Yrw2SEpVQh4UN6gYIMdm7nPKykzgU Nd8f/dI64LPKh2jBnIuiSfYHsV4eH3k= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-70-PhM8wleLMAmD1GygQEt--g-1; Wed, 01 Sep 2021 11:17:29 -0400 X-MC-Unique: PhM8wleLMAmD1GygQEt--g-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F0CBF1B2C980; Wed, 1 Sep 2021 15:17:28 +0000 (UTC) Received: from localhost (unknown [10.39.193.250]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 996E7380; Wed, 1 Sep 2021 15:17:28 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PULL 31/56] block/copy-before-write: drop extra bdrv_unref on failure path Date: Wed, 1 Sep 2021 17:15:54 +0200 Message-Id: <20210901151619.689075-32-hreitz@redhat.com> In-Reply-To: <20210901151619.689075-1-hreitz@redhat.com> References: <20210901151619.689075-1-hreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hreitz@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=170.10.133.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.392, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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 , Peter Maydell , Hanna Reitz , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy bdrv_attach_child() do bdrv_unref() on failure, so we shouldn't do it by hand here. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Max Reitz Message-Id: <20210824083856.17408-12-vsementsov@virtuozzo.com> Signed-off-by: Hanna Reitz --- block/copy-before-write.c | 1 - 1 file changed, 1 deletion(-) diff --git a/block/copy-before-write.c b/block/copy-before-write.c index 2a51cc64e4..945d9340f4 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -201,7 +201,6 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source, state->target = bdrv_attach_child(top, target, "target", &child_of_bds, BDRV_CHILD_DATA, errp); if (!state->target) { - bdrv_unref(target); bdrv_unref(top); return NULL; } -- 2.31.1