From patchwork Mon Feb 6 17:28:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13130446 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C992FC05027 for ; Mon, 6 Feb 2023 17:29:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230235AbjBFR3O (ORCPT ); Mon, 6 Feb 2023 12:29:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35766 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230316AbjBFR2v (ORCPT ); Mon, 6 Feb 2023 12:28:51 -0500 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D489A27986 for ; Mon, 6 Feb 2023 09:28:43 -0800 (PST) Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.206]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4P9Y9S0Flcz67Mww; Tue, 7 Feb 2023 01:27:24 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.17; Mon, 6 Feb 2023 17:28:41 +0000 From: Jonathan Cameron To: , Michael Tsirkin CC: Ben Widawsky , , , Ira Weiny , Gregory Price , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= Subject: [PATCH v4 01/10] hw/mem/cxl_type3: Improve error handling in realize() Date: Mon, 6 Feb 2023 17:28:07 +0000 Message-ID: <20230206172816.8201-2-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206172816.8201-1-Jonathan.Cameron@huawei.com> References: <20230206172816.8201-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhrpeml100005.china.huawei.com (7.191.160.25) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org msix_init_exclusive_bar() can fail, so if it does cleanup the address space. Reviewed-by: Ira Weiny Reviewed-by: Gregory Price Tested-by: Gregory Price Signed-off-by: Jonathan Cameron Reviewed-by: Fan Ni --- hw/mem/cxl_type3.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c index dae4fd89ca..252822bd82 100644 --- a/hw/mem/cxl_type3.c +++ b/hw/mem/cxl_type3.c @@ -401,7 +401,7 @@ static void ct3_realize(PCIDevice *pci_dev, Error **errp) MemoryRegion *mr = ®s->component_registers; uint8_t *pci_conf = pci_dev->config; unsigned short msix_num = 1; - int i; + int i, rc; if (!cxl_setup_memory(ct3d, errp)) { return; @@ -438,7 +438,10 @@ static void ct3_realize(PCIDevice *pci_dev, Error **errp) &ct3d->cxl_dstate.device_registers); /* MSI(-X) Initailization */ - msix_init_exclusive_bar(pci_dev, msix_num, 4, NULL); + rc = msix_init_exclusive_bar(pci_dev, msix_num, 4, NULL); + if (rc) { + goto err_address_space_free; + } for (i = 0; i < msix_num; i++) { msix_vector_use(pci_dev, i); } @@ -450,6 +453,11 @@ static void ct3_realize(PCIDevice *pci_dev, Error **errp) cxl_cstate->cdat.free_cdat_table = ct3_free_cdat_table; cxl_cstate->cdat.private = ct3d; cxl_doe_cdat_init(cxl_cstate, errp); + return; + +err_address_space_free: + address_space_destroy(&ct3d->hostmem_as); + return; } static void ct3_exit(PCIDevice *pci_dev)