From 9785b4321b0bd701f8d21d3d3c676a7739a5cf22 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 4 Oct 2016 11:19:08 +0200 Subject: [PATCH] drm/virtio: fix busid regression Created by commit a325725633c26aa66ab940f762a6b0778edf76c0. busid changes and userspace is upset. Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c index 49e5996cb9f2..8534a99e1aea 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c +++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c @@ -71,13 +71,22 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev) if (strcmp(vdev->dev.parent->bus->name, "pci") == 0) { struct pci_dev *pdev = to_pci_dev(vdev->dev.parent); + const char *pname = dev_name(&pdev->dev); bool vga = (pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA; + char unique[20]; - DRM_INFO("pci: %s detected\n", - vga ? "virtio-vga" : "virtio-gpu-pci"); + DRM_INFO("pci: %s detected at %s\n", + vga ? "virtio-vga" : "virtio-gpu-pci", + pname); dev->pdev = pdev; if (vga) virtio_pci_kick_out_firmware_fb(pdev); + + snprintf(unique, sizeof(unique), "pci:%s", pname); + ret = drm_dev_set_unique(dev, unique); + if (ret) + goto err_free; + } ret = drm_dev_register(dev, 0); -- 2.20.1