--- xinu/sys/sdelete.c	2018/04/24 17:39:04	1.1
+++ xinu/sys/sdelete.c	2018/04/24 17:39:57	1.1.1.2
@@ -13,22 +13,21 @@
 SYSCALL sdelete(sem)
 	int	sem;
 {
-	PStype	ps;
 	int	pid;
-	struct	sentry	*sptr;		/* address of sem to free	*/
+	struct	sentry	*sptr;
 
-	disable(ps);
+	disable();
 	if (isbadsem(sem) || semaph[sem].sstate==SFREE) {
-		restore(ps);
+		restore();
 		return(SYSERR);
 	}
 	sptr = &semaph[sem];
 	sptr->sstate = SFREE;
-	if (nonempty(sptr->sqhead)) {	/* free waiting processes	*/
+	if (nonempty(sptr->sqhead)) {
 		while( (pid=getfirst(sptr->sqhead)) != EMPTY)
 			ready(pid,RESCHNO);
 		resched();
 	}
-	restore(ps);
+	restore();
 	return(OK);
 }