Re: [PATCH v2] vhost-vdpa :Fix Coverity CID 1430270 / CID 1420267

[Li Qiang]

Cindy Lu <lulu@redhat.com> 于2020年7月10日周五 下午2:47写道：
>
> In the function vhost_vdpa_dma_map/unmap, The struct msg was not initialized 
> all its fields.
>
> Signed-off-by: Cindy Lu <lulu@redhat.com>

Reviewed-by: Li Qiang <liq3ea@gmail.com>

> ---
>  hw/virtio/vhost-vdpa.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
> index a3d17fe0f9..b9265f3761 100644
> --- a/hw/virtio/vhost-vdpa.c
> +++ b/hw/virtio/vhost-vdpa.c
> @@ -38,7 +38,7 @@ static bool 
> vhost_vdpa_listener_skipped_section(MemoryRegionSection *section)
>  static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size,
>                                void *vaddr, bool readonly)
>  {
> -    struct vhost_msg_v2 msg;
> +    struct vhost_msg_v2 msg = {};
>      int fd = v->device_fd;
>      int ret = 0;
>
> @@ -61,7 +61,7 @@ static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr 
> iova, hwaddr size,
>  static int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova,
>                                  hwaddr size)
>  {
> -    struct vhost_msg_v2 msg;
> +    struct vhost_msg_v2 msg = {};
>      int fd = v->device_fd;
>      int ret = 0;
>
> --
> 2.21.1
>
>