tree 6a2d1f07eb572f94ce636200b3dda37a3d794333
parent 37377e9cd703605f3bec4598898d0ce86f3e5188
author Derek Basehore <dbasehore@chromium.org> 1491202050 -0700
committer chrome-bot <chrome-bot@chromium.org> 1491280653 -0700

power_utils: Set _psr_path to the empty string by default

If we never set the _psr_path attribute, we run into an unhandled
exception. This sets the _psr_path attribute for the
DisplayPanelSelfRefresh class to '' when we don't find the PSR
counter file.

BUG=None
TEST=power_LoadTest on elm

Change-Id: I86cca10ba54b0be11f2ee4fc666ffe3758dcdf16
Reviewed-on: https://chromium-review.googlesource.com/465459
Commit-Ready: Derek Basehore <dbasehore@chromium.org>
Tested-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>