The macro sfc_vdpa_info(sva, ...) will invoke sva->logtype_main, It'll trigger a NULL dereference when sva is NULL.
This patch fix it. BTW this patch is not superseded by another one: [v2] vdpa/sfc: fix null dereference (http://dpdk.org/patch/106720) They looks alike in title, but deal with different files. Please don't tag me as superseded again :)
