If the iov_len is 0, it is OK for the iov_base to be
NULL.
Reported-by: Yi Ren <yunye.ry@alibaba-inc.com>
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I45c9be68fc2975bf2abd91a9d77935ce516c5210
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6706
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot