nvme_map_sgl_data erroneously uses the sgls member of NvmeIdNs as a
uint16_t.
Reported-by: Coverity (CID 1436129)
Fixes: cba0a8a344fe ("hw/block/nvme: add support for scatter gather lists")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Message-Id: <20201104102248.32168-3-its@irrelevant.dk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>