Il 18/08/2014 09:42, zhanghailiang ha scritto:
> In function virtio_blk_handle_request, it may freed memory pointed by req,
> So do not access member of req after calling this function.
>
> Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
> Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
> Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
> ---
> hw/block/virtio-blk.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
> index c241c50..0e3925b 100644
> --- a/hw/block/virtio-blk.c
> +++ b/hw/block/virtio-blk.c
> @@ -469,8 +469,9 @@ static void virtio_blk_dma_restart_bh(void *opaque)
> s->rq = NULL;
>
> while (req) {
> + VirtIOBlockReq *next = req->next;
> virtio_blk_handle_request(req, &mrb);
> - req = req->next;
> + req = next;
> }
>
> virtio_submit_multiwrite(s->bs, &mrb);
>
Cc: qemu-sta...@nongnu.org
