CRAS: system_state: better return code
cras_system_add_alsa_card() identifies sound card by an unique number.
The same sound card added to cras twice is disallowed. Returns a EEXIST
should be better than EINVAL in the context.
BUG=None
TEST=None
Signed-off-by: Tzung-Bi Shih <tzungbi@chromium.org>
Change-Id: Ie775830d384434eee8c7e677067bf5bfc128147f
Reviewed-on: https://chromium-review.googlesource.com/1127576
Commit-Ready: Tzung-Bi Shih <tzungbi@chromium.org>
Tested-by: Tzung-Bi Shih <tzungbi@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
1 file changed