Re: [Qemu-devel] [PATCH] virtio-gpu: call cleanup mapping function in resource destroy

[Li Qiang]

Ping!

2016-11-29 10:29 GMT+08:00 Li Qiang <address@hidden>:

> If the guest destroy the resource before detach banking, the 'iov'
> and 'addrs' field in resource is not freed thus leading memory
> leak issue. This patch avoid this.
>
> Signed-off-by: Li Qiang <address@hidden>
> ---
>  hw/display/virtio-gpu.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
> index 60bce94..98dadf2 100644
> --- a/hw/display/virtio-gpu.c
> +++ b/hw/display/virtio-gpu.c
> @@ -28,6 +28,8 @@
>  static struct virtio_gpu_simple_resource*
>  virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id);
>
> +static void virtio_gpu_cleanup_mapping(struct virtio_gpu_simple_resource
> *res);
> +
>  #ifdef CONFIG_VIRGL
>  #include <virglrenderer.h>
>  #define VIRGL(_g, _virgl, _simple, ...)                     \
> @@ -358,6 +360,7 @@ static void virtio_gpu_resource_destroy(VirtIOGPU *g,
>                                          struct virtio_gpu_simple_resource
> *res)
>  {
>      pixman_image_unref(res->image);
> +    virtio_gpu_cleanup_mapping(res);
>      QTAILQ_REMOVE(&g->reslist, res, next);
>      g_free(res);
>  }
> --
> 1.8.3.1
>
>