[PATCH 23/37] binder: make sure accesses to proc/thread are safe

binder_thread and binder_proc may be accessed by other threads when processing transaction. Therefore they must be prevented from being freed while a transaction is in progress that references them. This is done by introducing a temporary reference counter for threads and procs that indicates

[PATCH 23/37] binder: make sure accesses to proc/thread are safe

binder_thread and binder_proc may be accessed by other threads when processing transaction. Therefore they must be prevented from being freed while a transaction is in progress that references them. This is done by introducing a temporary reference counter for threads and procs that indicates