Blob resources without the cross device flag don't have a uuid to share with other virtio devices. When exporting such blobs, set uuid_state to STATE_ERR so that virtgpu_virtio_get_uuid doesn't hang.

Signed-off-by: David Stevens stevensd@chromium.org --- drivers/gpu/drm/virtio/virtgpu_prime.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c index 807a27a16365..e45dbf14b307 100644 --- a/drivers/gpu/drm/virtio/virtgpu_prime.c +++ b/drivers/gpu/drm/virtio/virtgpu_prime.c @@ -98,6 +98,8 @@ struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj, } else { bo->uuid_state = STATE_ERR; } + } else if (!(bo->blob_flags & VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE)) { + bo->uuid_state = STATE_ERR; }

exp_info.ops = &virtgpu_dmabuf_ops.ops;