Hi

----- Original Message -----
> In the resource attach backing function, everytime it will
> allocate 'res->iov' thus can leading a memory leak. This
> patch avoid this.
> 
> Signed-off-by: Li Qiang <liq...@gmail.com>
> ---
>  hw/display/virtio-gpu.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
> index 5f32e1a..045f296 100644
> --- a/hw/display/virtio-gpu.c
> +++ b/hw/display/virtio-gpu.c
> @@ -705,6 +705,11 @@ virtio_gpu_resource_attach_backing(VirtIOGPU *g,
>          return;
>      }
>  
> +    if (res->iov) {
> +        cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
> +        return;
> +    }
> +

I think I would rather return an error in the library for this case.

>      ret = virtio_gpu_create_mapping_iov(&ab, cmd, &res->addrs, &res->iov);
>      if (ret != 0) {
>          cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
> --
> 1.8.3.1
> 
> 

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