drm/virtio: Fixes a potential NULL pointer dereference on probe failure
The dev->dev_private might not be allocated if virtio_gpu_pci_quirk() or virtio_gpu_init() failed. In this case, we should avoid the cleanup in virtio_gpu_release(). Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Link: http://patchwork.freedesktop.org/patch/msgid/20210517084913.403-1-xieyongji@bytedance.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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