From patchwork Tue Jun 9 19:03:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 281011 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 D4CB9C433E0 for ; Tue, 9 Jun 2020 19:22:51 +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 AC5BD206C3 for ; Tue, 9 Jun 2020 19:22:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AC5BD206C3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=irrelevant.dk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52142 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jijpi-0005pv-Ux for qemu-devel@archiver.kernel.org; Tue, 09 Jun 2020 15:22:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44724) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jijXi-0006TI-0Q; Tue, 09 Jun 2020 15:04:14 -0400 Received: from charlie.dont.surf ([128.199.63.193]:40338) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jijXg-0006lL-Qv; Tue, 09 Jun 2020 15:04:13 -0400 Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by charlie.dont.surf (Postfix) with ESMTPSA id A7013BFAE7; Tue, 9 Jun 2020 19:03:50 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v7 20/22] hw/block/nvme: Verify msix_vector_use() returned value Date: Tue, 9 Jun 2020 21:03:31 +0200 Message-Id: <20200609190333.59390-21-its@irrelevant.dk> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200609190333.59390-1-its@irrelevant.dk> References: <20200609190333.59390-1-its@irrelevant.dk> MIME-Version: 1.0 Received-SPF: pass client-ip=128.199.63.193; envelope-from=its@irrelevant.dk; helo=charlie.dont.surf X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/09 14:38:46 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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 , Klaus Jensen , qemu-devel@nongnu.org, Max Reitz , Klaus Jensen , Keith Busch , Javier Gonzalez , Maxim Levitsky , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?b?w6k=?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Philippe Mathieu-Daudé msix_vector_use() returns -EINVAL on error. Assert it won't. Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20200602155709.9776-1-philmd@redhat.com> Signed-off-by: Kevin Wolf --- hw/block/nvme.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index e10fc774fc34..fe17aa5d7041 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -615,6 +615,10 @@ static uint16_t nvme_del_cq(NvmeCtrl *n, NvmeCmd *cmd) static void nvme_init_cq(NvmeCQueue *cq, NvmeCtrl *n, uint64_t dma_addr, uint16_t cqid, uint16_t vector, uint16_t size, uint16_t irq_enabled) { + int ret; + + ret = msix_vector_use(&n->parent_obj, vector); + assert(ret == 0); cq->ctrl = n; cq->cqid = cqid; cq->size = size; @@ -625,7 +629,6 @@ static void nvme_init_cq(NvmeCQueue *cq, NvmeCtrl *n, uint64_t dma_addr, cq->head = cq->tail = 0; QTAILQ_INIT(&cq->req_list); QTAILQ_INIT(&cq->sq_list); - msix_vector_use(&n->parent_obj, cq->vector); n->cq[cqid] = cq; cq->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, nvme_post_cqes, cq); }