From: Xie Yongji xieyongji@bytedance.com
[ Upstream commit cec7f1774605a5ef47c134af62afe7c75c30b0ee ]
The virtio_gpu_init() will free vgdev and vgdev->vbufs on failure. But such failure will be caught by virtio_gpu_probe() and then virtio_gpu_release() will be called to do some cleanup which will free vgdev and vgdev->vbufs again. So let's set dev->dev_private to NULL to avoid double free.
Signed-off-by: Xie Yongji xieyongji@bytedance.com Link: http://patchwork.freedesktop.org/patch/msgid/20210517084913.403-2-xieyongji@... Signed-off-by: Gerd Hoffmann kraxel@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/virtio/virtgpu_kms.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c index d8b2027730d0..cde38e14232c 100644 --- a/drivers/gpu/drm/virtio/virtgpu_kms.c +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c @@ -234,6 +234,7 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags) err_vbufs: vgdev->vdev->config->del_vqs(vgdev->vdev); err_vqs: + dev->dev_private = NULL; kfree(vgdev); return ret; }