2008-07-19  Barry deFreese  <bddebian@comcast.net>

	* chips/busses.h (struct bus_ctlr): *intr return void instead of int.
	* i386/i386/ipl.h (ivect[]): return void instead of int.
	* i386/i386at/pic_isa.h (ivect[]): Likewise.
	* i386/i386at/kd_mouse.c (mouseintr): Likewise.
	* i386/i386/trap.c (user_trap): Return 1 if end of function is reached.
	* i386/i386at/com.c (comintr, comstop): Return 0 at end of function.
	* i386/i386at/kd.c (kdcnputc, kdstart, kdintr): Return void instead 
	of int. (kdstop, kdcnprobe): Return 0 at end of function.
	* i386/i386at/lpr.c (lprintr, lprstart): Return void instead of int.
	(lprstart): Don't return numeric values any longer.
	* kern/eventcount.c (evc_wait): Return a value.