In the completion handler there's no need to do an MMIO read
unless the completion record indicates there's an error.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Ic4850d803a23413f9813da30ac6f1b611804f1b5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5847
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
9623a0402b