This can happen if userspace doesn't issue any 3D ioctls before closing the DRM fd.

Fixes: 72b48ae800da ("drm/virtio: enqueue virtio_gpu_create_context after the first 3D ioctl") Signed-off-by: Gurchetan Singh gurchetansingh@chromium.org --- drivers/gpu/drm/virtio/virtgpu_kms.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c index 023a030ca7b99..a5038298c6ae3 100644 --- a/drivers/gpu/drm/virtio/virtgpu_kms.c +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c @@ -52,14 +52,6 @@ static void virtio_gpu_config_changed_work_func(struct work_struct *work) events_clear, &events_clear); }

-static void virtio_gpu_context_destroy(struct virtio_gpu_device *vgdev, - uint32_t ctx_id) -{ - virtio_gpu_cmd_context_destroy(vgdev, ctx_id); - virtio_gpu_notify(vgdev); - ida_free(&vgdev->ctx_id_ida, ctx_id - 1); -} - static void virtio_gpu_init_vq(struct virtio_gpu_queue *vgvq, void (*work_func)(struct work_struct *work)) { @@ -274,14 +266,17 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file) void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file) { struct virtio_gpu_device *vgdev = dev->dev_private; - struct virtio_gpu_fpriv *vfpriv; + struct virtio_gpu_fpriv *vfpriv = file->driver_priv;

if (!vgdev->has_virgl_3d) return;

- vfpriv = file->driver_priv; + if (vfpriv->context_created) { + virtio_gpu_cmd_context_destroy(vgdev, vfpriv->ctx_id); + virtio_gpu_notify(vgdev); + }

- virtio_gpu_context_destroy(vgdev, vfpriv->ctx_id); + ida_free(&vgdev->ctx_id_ida, vfpriv->ctx_id - 1); mutex_destroy(&vfpriv->context_lock); kfree(vfpriv); file->driver_priv = NULL;