amlhwdmx: CB1 set cached_events to NULL when flush stop [1/1]

PD#SWPL-186431

Problem:
Cached events is not been set to NULL when flush stop,
then error when write again

Solution:
set cached_events to NULL when flush stop

Verify:
ah212

Change-Id: I4882748936193f88ba62adeccaf3dfd583163b97
Signed-off-by: hanghang.luo <hanghang.luo@amlogic.com>
1 file changed