From nobody Thu May 16 19:51:05 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1591113529; cv=none; d=zohomail.com; s=zohoarc; b=brcqBmoYPY7shypRrGGbDYEBonM6KfBI8JvuzkHeZGHDePftEdrtmlE5L2tVvxXA6pfXyKMbFlcDHyDqptKQNHjac3FYtdGJ3RV/nfCUAxpIomJkW579SEIJHV6Mfe6aOcRprWaBH3ar0n3ZV+Nsekl8DkmVUixrtbetHLO3eiM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1591113529; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=9ZrbSNIPo8XU4Y5RaXAFzlgvCAK46llYw9ANIsbKyuw=; b=HR6oY2XKMTpi9mMAz19e3Z4IMSfGQrQXfDxSsf/oB1/WdI4QQRduqs1IeyLr/q3K0S1ppAMI94zyegj4hZvFDICnDXABw7JxJYoZ4C1XvSpIbm0Huhrsgs8xo1/jDpfO7Meb44P+dzHvYgzoUAdeoS4FrZQGnzSFedvqsDkCq9k= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1591113529492407.838411676796; Tue, 2 Jun 2020 08:58:49 -0700 (PDT) Received: from localhost ([::1]:34860 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jg9JP-0003JL-RZ for importer@patchew.org; Tue, 02 Jun 2020 11:58:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57560) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jg9Hz-00024b-8v for qemu-devel@nongnu.org; Tue, 02 Jun 2020 11:57:19 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:45429 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jg9Hy-0001Tt-B1 for qemu-devel@nongnu.org; Tue, 02 Jun 2020 11:57:18 -0400 Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-32-16uwhoxzN0GO0oqPFwEoZg-1; Tue, 02 Jun 2020 11:57:13 -0400 Received: by mail-wm1-f71.google.com with SMTP id v23so1124110wmj.0 for ; Tue, 02 Jun 2020 08:57:12 -0700 (PDT) Received: from x1w.redhat.com (181.red-88-10-103.dynamicip.rima-tde.net. [88.10.103.181]) by smtp.gmail.com with ESMTPSA id w3sm168052wmg.44.2020.06.02.08.57.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jun 2020 08:57:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1591113437; 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; bh=9ZrbSNIPo8XU4Y5RaXAFzlgvCAK46llYw9ANIsbKyuw=; b=cg4oz1JEwkHy/MzWxlAWdfri8XlT4D1l59UNd8ZB7ByaCJbsC4vk2iKopD/hQu6w+uemDe rPCeC6S9TVWMtg1BS07+w1lw49YSUgrOzg6AiMuZydYw+nINt5PTYeEijpqEUkrS9kFJP3 M8Oo3v7+SjJK3eN50+XOvb2jfPzkTy4= X-MC-Unique: 16uwhoxzN0GO0oqPFwEoZg-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=9ZrbSNIPo8XU4Y5RaXAFzlgvCAK46llYw9ANIsbKyuw=; b=CBvGfGoDh0iYOEuVKDTryb0AhkPU5figjLh4d1BxS9S6AKAqaByIz3/RldBeHxd35f EHlhBZgGaVYKupaZ5N3BEfVQlArg3z+NCHyjJSqr2Ws2+HzkA0ba+JUaONVdCJoBCQJ3 KzeyNBhykQoV1RE17W2WKtaQi8Vi9jn5PjWin8gxTnbRcNkFobMGbkLGEgzK2yjS62eH dT+ftSMD79ZoElppdhONbjr+q82ss5qidiu47AH1duebTILq50Bgq0BciQic2F4+D41e V9bl3+JggGfdev6x27YlFMaPdXvG/jG4CMM8PlMrLylKffuBTjUrQQ6u754tQH9N3G1k atoA== X-Gm-Message-State: AOAM53162d4LQDjQkkG0jiEOtbcnT1f1wX3cPRqyxP4YT0ZjHJj49FeP C1Gztd08a22OuqHEYyCzHawPE5kZvCjm6CCCthlKmeEhQc2OhlFM/nUBrHmPaidGIvzpf6P6hyM VvKjawDQt7qlA9rI= X-Received: by 2002:a1c:9e52:: with SMTP id h79mr4727484wme.84.1591113431773; Tue, 02 Jun 2020 08:57:11 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwJPh4NiiAOy5cr7Kbo0emuHdL+KO7DQ5DYIYpCMqZ+gpBJ6jD75M2SZ6wWbGlNvgnsKhxCCA== X-Received: by 2002:a1c:9e52:: with SMTP id h79mr4727464wme.84.1591113431596; Tue, 02 Jun 2020 08:57:11 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH] hw/block/nvme: Verify msix_vector_use() returned value Date: Tue, 2 Jun 2020 17:57:09 +0200 Message-Id: <20200602155709.9776-1-philmd@redhat.com> X-Mailer: git-send-email 2.21.3 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8"; text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.61; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/02 03:23:32 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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, DKIMWL_WL_HIGH=0.001, 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_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=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 , qemu-block@nongnu.org, Klaus Jensen , Max Reitz , Klaus Jensen , Keith Busch , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) msix_vector_use() returns -EINVAL on error. Assert it won't. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- Notes taken while reviewing: https://www.mail-archive.com/qemu-block@nongnu.org/msg66831.html Based-on: <20200514044611.734782-1-its@irrelevant.dk> --- 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 0cb54d902d..5fee563e99 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -613,6 +613,10 @@ 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 =3D msix_vector_use(&n->parent_obj, vector); + assert(ret =3D=3D 0); cq->ctrl =3D n; cq->cqid =3D cqid; cq->size =3D size; @@ -623,7 +627,6 @@ static void nvme_init_cq(NvmeCQueue *cq, NvmeCtrl *n, u= int64_t dma_addr, cq->head =3D cq->tail =3D 0; QTAILQ_INIT(&cq->req_list); QTAILQ_INIT(&cq->sq_list); - msix_vector_use(&n->parent_obj, cq->vector); n->cq[cqid] =3D cq; cq->timer =3D timer_new_ns(QEMU_CLOCK_VIRTUAL, nvme_post_cqes, cq); } --=20 2.21.3