From http://repo.or.cz/w/qemu/malc.git?a=shortlog;h=refs/heads/audio :
Implicitly lock the mutex at startup of playback/capture threads, otherwise
pthread_mutex_destroy (in audio_pt_fini) fails with EBUSY.
Endianness fix.
Remove a c&p residue.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4296 c046a42c-6fe2-441c-8c8c-71466251a162