From patchwork Thu Aug 31 12:59:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Frolov X-Patchwork-Id: 13371554 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 09632C83F01 for ; Thu, 31 Aug 2023 13:17:48 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qbhLV-0008BX-Bc; Thu, 31 Aug 2023 09:04:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qbhHX-0005tB-Hu; Thu, 31 Aug 2023 09:00:22 -0400 Received: from mx.swemel.ru ([95.143.211.150]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qbhHR-0006TA-7O; Thu, 31 Aug 2023 09:00:18 -0400 From: Dmitry Frolov DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=swemel.ru; s=mail; t=1693486805; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=GYdOQ0xvtEmo+ZfyGAg1NXhfZlMos6zME9NUPxYncoU=; b=LzQnRPi/r8a+CJDOOGWyJLF0W2BiC/IhixUB+7vHa0QQ9FAb+PpwnfxHKifkJEbcGjOZbm AonRx7Rqknp/1dMOMZXFugQgQCNPxr2e9ozfpUBrH09rXTdGoMTVQXRBtOiMt8ftl32taQ lGufRWQH4sE0hTJkDR+7nYkKU6Gg5NY= To: qemu-devel@nongnu.org, qemu-block@nongnu.org, fam@euphon.net, kwolf@redhat.com, hreitz@redhat.com Cc: sdl.qemu@linuxtesting.org, Dmitry Frolov Subject: [PATCH] fix bdrv_open_child return value check Date: Thu, 31 Aug 2023 15:59:27 +0300 Message-Id: <20230831125926.796205-1-frolov@swemel.ru> MIME-Version: 1.0 Received-SPF: pass client-ip=95.143.211.150; envelope-from=frolov@swemel.ru; helo=mx.swemel.ru X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org bdrv_open_child() may return NULL. Usually return value is checked for this function. Check for return value is more reliable. Fixes: 24bc15d1f6 ("vmdk: Use BdrvChild instead of BDS for references to extents") Signed-off-by: Dmitry Frolov --- block/vmdk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/vmdk.c b/block/vmdk.c index 70066c2b01..58ce290e9c 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -1207,7 +1207,7 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs, bs, &child_of_bds, extent_role, false, &local_err); g_free(extent_path); - if (local_err) { + if (!extent_file) { error_propagate(errp, local_err); ret = -EINVAL; goto out;