vhost-vdpa: fix use after free in vhost_vdpa_probe()

vhost-vdpa: fix use after free in vhost_vdpa_probe()

The put_device() calls vhost_vdpa_release_dev() which calls
ida_simple_remove() and frees "v".  So this call to
ida_simple_remove() is a use after free and a double free.

Fixes: ebe6a354fa7e ("vhost-vdpa: Call ida_simple_remove() when failed")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Message-Id: <cf53cb61-0699-4e36-a980-94fd4268ff00@moroto.mountain>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>