adhd: Fix leaks and invalid memory access in alsa_io_unittest

BUG=chromium:857597
TEST=FEATURE=test USE=asan emerge-amd64-generic adhd

Change-Id: I75601b714a59148f72962700d161e2c7d7876da1
Reviewed-on: https://chromium-review.googlesource.com/1126881
Commit-Ready: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: Chih-Yang Hsia <paulhsia@chromium.org>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>
1 file changed