ANDROID: binder: synchronize_rcu() when using POLLFREE.

To prevent races with ep_remove_waitqueue() removing the
waitqueue at the same time.

Reported-by: [email protected]
Signed-off-by: Martijn Coenen <[email protected]>
Cc: stable <[email protected]> # 4.14+
Signed-off-by: Greg Kroah-Hartman <[email protected]>
1 file changed