When generating sound buffers for /dev/audio bells, insert waveform
for beep *or* silence, but not both, so we don't write one entry past
the end of the iov buffer when the final bit of soundwave ends up in
the final entry allocated in the iov array.
Fixes OpenSolaris bug 6894890:
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6894890
Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
be96fb2f02