This simpifies the code a little without any degradation. Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Change-Id: I6006266e250f2d083aa12424809d04fac6a9f8f0 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4385 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>