CHERRY-PICK: Ignores the case when the sensor doesn't exist.

BUG=None
TEST=test on DUT

ORIGINAL: Change-Id: I4450a581eddeef2f99574abffbe109c92fc95619
ORIGINAL: Reviewed-on: https://gerrit.chromium.org/gerrit/33481
ORIGINAL: Reviewed-by: Andy Cheng <andycheng@chromium.org>
ORIGINAL: Tested-by: Andy Cheng <andycheng@chromium.org>
(cherry picked from commit c9da3c191c153ca1f10ac80fb2ba8d98f5979c81)

Change-Id: I42da3d61160b84884ea2df078e05139a4a8b6142
Reviewed-on: https://gerrit.chromium.org/gerrit/33516
Commit-Ready: Andy Cheng <andycheng@chromium.org>
Reviewed-by: Andy Cheng <andycheng@chromium.org>
Tested-by: Andy Cheng <andycheng@chromium.org>
1 file changed