tree edb43b02ab76f1c73319beb0692547ea53ca587e
parent f62f24a63e3039bf3d13d2c13a4d35d661e95b47
author Cheng-Yi Chiang <cychiang@chromium.org> 1489566753 +0800
committer chrome-bot <chrome-bot@chromium.org> 1489774013 -0700

CRAS: alsa_jack - Remove callback of hctl element on destroy

When a hctl jack is to be freed, its callback should be removed too.
Otherwise, callback will be called when snd_hctl_close is called, and at
that time, iodev and jack might already be destroyed.

BUG=chromium:701542
TEST=make check

Change-Id: If08f98f5323aef75cb45dfe81bf5980da891e2f7
Reviewed-on: https://chromium-review.googlesource.com/455618
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Hsinyu Chao <hychao@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>