Also use this function in iscsi/conn.c Change-Id: I25f6da175eddb12c4ac2624d695c2c43c871d8e8 Signed-off-by: Ziye Yang <optimistyzy@gmail.com> Reviewed-on: https://review.gerrithub.io/392713 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>