bigocean: Release reference before returning

Fix a bug where instance references were not being released before
returning from IOCTL.

bug: 312438904

Change-Id: I55f16e9856aa50e8312b444cb384bebcf7b41174
(cherry picked from commit d912d091a31cfe27cc74ea43ed6be88d7b585900)
Signed-off-by: Vinay Kalia <vinaykalia@google.com>
1 file changed