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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1719390466; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IIj8ad/t6QF6I2S65p7DeU6tGtDq1WeGUySH+lTT+ZI=; b=bJWehBZbLT919MMnMT7nG6h9D2pBO4EFjlbqj/uY4kHA4w1g5oEQz/PmSTwSd5HlT25nYj vdnYlK233eummjXPfDUrfv96RkSU0DG/Cu6Q+JG/jwb9+BQyG35Hyz4jt5vGjfygyhNrJ/ wHowy7QTgUTFaY611H3Zsl7kpBexCtw= X-MC-Unique: eqvEHFaBPu6SvVecpm19uQ-1 From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, mst@redhat.com, jean-philippe@linaro.org, peter.maydell@linaro.org, clg@redhat.com, yanghliu@redhat.com, zhenzhong.duan@intel.com, alex.williamson@redhat.com Subject: [PATCH 1/7] virtio-iommu: Fix error handling in virtio_iommu_set_host_iova_ranges() Date: Wed, 26 Jun 2024 10:26:46 +0200 Message-ID: <20240626082727.1278530-2-eric.auger@redhat.com> In-Reply-To: <20240626082727.1278530-1-eric.auger@redhat.com> References: <20240626082727.1278530-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 11 X-Spam_score: 1.1 X-Spam_bar: + X-Spam_report: (1.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.151, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1719390529635100001 Content-Type: text/plain; charset="utf-8" In case no IOMMUPciBus/IOMMUDevice are found we need to properly set the error handle and return. Fixes : Coverity CID 1549006 Signed-off-by: Eric Auger Fixes: cf2647a76e ("virtio-iommu: Compute host reserved regions") Reviewed-by: C=C3=A9dric Le Goater --- hw/virtio/virtio-iommu.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index b9a7ddcd14..b708fb96fd 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -543,10 +543,15 @@ static int virtio_iommu_set_host_iova_ranges(VirtIOIO= MMU *s, PCIBus *bus, int ret =3D -EINVAL; =20 if (!sbus) { - error_report("%s no sbus", __func__); + error_setg(errp, "%s: no IOMMUPciBus found!", __func__); + return ret; } =20 sdev =3D sbus->pbdev[devfn]; + if (!sdev) { + error_setg(errp, "%s: no IOMMUDevice found!", __func__); + return ret; + } =20 current_ranges =3D sdev->host_resv_ranges; =20 --=20 2.41.0