From patchwork Thu Nov 2 09:12:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 13443530 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 88660C4332F for ; Thu, 2 Nov 2023 09:13:21 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qyTl0-0005WA-Fc; Thu, 02 Nov 2023 05:12:54 -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 1qyTkz-0005W1-Li for qemu-devel@nongnu.org; Thu, 02 Nov 2023 05:12:53 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qyTky-0004EQ-5P for qemu-devel@nongnu.org; Thu, 02 Nov 2023 05:12:53 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1698916370; 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=XzS/FN6c50cnObI8qPsXKPTRQkU1eC3Pp3jJQFFfTZI=; b=gYwg1I8bbsEEk2ysitybBltW3N7U5gkikQKmmz8c1HQwdmz9EB4QQpcm9pzO0UMQRSOp1+ Ljx8BVJ2cnKV4nA+Ocs2C3+9j29P7AZpBe4J/8eIZTCm9iU7lS/sCa/TdI2wQuR/8W9Z+D /P8xLh/NyefzOayCMEW5B5iBbcv1m1o= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-572-zkAwNJnGMr2FkeqHWZAchQ-1; Thu, 02 Nov 2023 05:12:47 -0400 X-MC-Unique: zkAwNJnGMr2FkeqHWZAchQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5557185A58B; Thu, 2 Nov 2023 09:12:47 +0000 (UTC) Received: from secure.mitica (unknown [10.39.195.26]) by smtp.corp.redhat.com (Postfix) with ESMTP id 22F2C40C6EBF; Thu, 2 Nov 2023 09:12:45 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Fabiano Rosas , Juan Quintela , Peter Xu , Leonardo Bras Subject: [PATCH] migration: Unlock mutex in error case Date: Thu, 2 Nov 2023 10:12:45 +0100 Message-ID: <20231102091245.42045-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.393, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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 We were not unlocking bitmap mutex on the error case. Coverity discovered the problem. Fixes: a2326705e5 ("migration: Stop migration immediately in RDMA error paths") Signed-off-by: Juan Quintela Reviewed-by: Peter Xu --- migration/ram.c | 1 + 1 file changed, 1 insertion(+) diff --git a/migration/ram.c b/migration/ram.c index 34724e8fe8..8c4df60f29 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3040,6 +3040,7 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) ret = rdma_registration_start(f, RAM_CONTROL_ROUND); if (ret < 0) { qemu_file_set_error(f, ret); + qemu_mutex_unlock(&rs->bitmap_mutex); goto out; }