tree cbb437d7680c0e7a621cf5648758abc9a6caff67
parent 3d8118bee9c9a5ccec91d4b047a93447db173131
author lisali <xiaoyan.li@intel.com> 1472029880 +0800
committer lisali <xiaoyan.li@intel.com> 1472029880 +0800

Fix mutliple attach/detach issue

When two tests use one volume, one is to attach the volume and
creates targets. The other is to detach the volume and remove targets.
Sometimes it leads tests fail.

Change-Id: I82b216844b43f3440d1827e66225f1f97e97dd19
Closes-Bug: #1616338