The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. virtio_gpu_pci_base_realize(), virtio_vga_base_realize(), sparc32_ledma_device_realize(), sparc32_dma_realize(), sparc32_dma_realize() xilinx_axidma_realize(), mips_cps_realize(), macio_realize_ide(), xilinx_enet_realize(), and virtio_iommu_pci_realize() are wrong that way: they reuse the argument they pass to object_property_set_link() for another call. Harmless, because object_property_set_link() can't actually fail for them: it fails when the property doesn't exist, is not settable, or its .check() method fails. Fix by passing &error_abort instead. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Alistair Francis <alistair@alistair23.me> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-arm@nongnu.org Cc: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com> Cc: Eric Auger <eric.auger@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20200630090351.1247703-16-armbru@redhat.com> Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/*
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* Virtio video device
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*
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* Copyright Red Hat
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*
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* Authors:
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* Dave Airlie
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "hw/pci/pci.h"
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#include "hw/qdev-properties.h"
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#include "hw/virtio/virtio.h"
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#include "hw/virtio/virtio-bus.h"
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#include "hw/virtio/virtio-gpu-pci.h"
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static Property virtio_gpu_pci_base_properties[] = {
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DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VirtIOGPUPCIBase *vgpu = VIRTIO_GPU_PCI_BASE(vpci_dev);
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VirtIOGPUBase *g = vgpu->vgpu;
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DeviceState *vdev = DEVICE(g);
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int i;
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Error *local_error = NULL;
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virtio_pci_force_virtio_1(vpci_dev);
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qdev_realize(vdev, BUS(&vpci_dev->bus), &local_error);
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if (local_error) {
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error_propagate(errp, local_error);
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return;
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}
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for (i = 0; i < g->conf.max_outputs; i++) {
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object_property_set_link(OBJECT(g->scanout[i].con),
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OBJECT(vpci_dev),
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"device", &error_abort);
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}
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}
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static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
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PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
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set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
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device_class_set_props(dc, virtio_gpu_pci_base_properties);
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dc->hotpluggable = false;
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k->realize = virtio_gpu_pci_base_realize;
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pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
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}
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static const TypeInfo virtio_gpu_pci_base_info = {
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.name = TYPE_VIRTIO_GPU_PCI_BASE,
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.parent = TYPE_VIRTIO_PCI,
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.instance_size = sizeof(VirtIOGPUPCIBase),
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.class_init = virtio_gpu_pci_base_class_init,
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.abstract = true
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};
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#define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci"
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#define VIRTIO_GPU_PCI(obj) \
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OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI)
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typedef struct VirtIOGPUPCI {
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VirtIOGPUPCIBase parent_obj;
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VirtIOGPU vdev;
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} VirtIOGPUPCI;
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static void virtio_gpu_initfn(Object *obj)
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{
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VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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TYPE_VIRTIO_GPU);
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VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
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}
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static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = {
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.generic_name = TYPE_VIRTIO_GPU_PCI,
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.parent = TYPE_VIRTIO_GPU_PCI_BASE,
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.instance_size = sizeof(VirtIOGPUPCI),
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.instance_init = virtio_gpu_initfn,
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};
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static void virtio_gpu_pci_register_types(void)
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{
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type_register_static(&virtio_gpu_pci_base_info);
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virtio_pci_types_register(&virtio_gpu_pci_info);
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}
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type_init(virtio_gpu_pci_register_types)
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