st-hal: fix st session deadlock issue
When start request comes from client during session in
buffering state, it will first hold session lock, if
start_session is called and there's an LPI to non-LPI
switch, dereg_sm can be invoked and then wait for
callback thread to exit.
At the same time, callback thread also needs to hold
the session lock if session is still in buffering state,
this finally causes deadlock.
Move session to loaded state after stop_session called
in buffering state.
Change-Id: I49124f5fc42c801ebe9d74e7f2fdd1d9f6a4cfed
1 file changed