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Created by Peter Bortas@zinoOwner

Use of uninitialized memory in backend.cmod

Imported from http://bugzilla.roxen.com/bugzilla/show_bug.cgi?id=4411

Reported by Anders Blomdell, Reglerteknik, LTH anders.blomdell@control.lth.se

The code:
	INIT_FD_CALLBACK_BOX (&me->wakeup_cb_box, me, NULL,
			      pipe[0], PIKE_BIT_FD_READ, wakeup_callback);
	me->wakeup_pipe_send_fd = pipe[1];

is obviously bogus, since INIT_FD_CALLBACK_BOX uses wakeup_pipe_send_fd, has to be changed to:

	me->wakeup_pipe_send_fd = pipe[1];
	INIT_FD_CALLBACK_BOX (&me->wakeup_cb_box, me, NULL,
			      pipe[0], PIKE_BIT_FD_READ, wakeup_callback);