--- xinu/sys/psend.c	2018/04/24 17:39:04	1.1.1.1
+++ xinu/sys/psend.c	2018/04/24 17:40:12	1.1.1.2
@@ -11,21 +11,23 @@
  */
 SYSCALL	psend(portid, msg)
 int	portid;
-int	msg;
+WORD	msg;
 {
-	PStype	ps;
 	struct	pt	*ptptr;
 	int	seq;
 	struct	ptnode	*freenode;
 	
 
-	disable(ps);
+#ifdef	DEBUG
+	dotrace("psend", &portid, 2);
+#endif
+	disable();
 	if ( isbadport(portid) ||
 #ifdef	MEMMARK
 	     unmarked(ptmark) ||
 #endif
 	     (ptptr= &ports[portid])->ptstate != PTALLOC ) {
-		restore(ps);
+		restore();
 		return(SYSERR);
 	}
 
@@ -35,22 +37,24 @@ int	msg;
 	if (wait(ptptr->ptssem) == SYSERR
 	    || ptptr->ptstate != PTALLOC
 	    || ptptr->ptseq != seq) {
-		restore(ps);
+		restore();
+		return(SYSERR);
+	}
+	if (ptfree == NULL) {
+		kprintf("Ports  -  out of nodes");
 		return(SYSERR);
 	}
-	if (ptfree == (struct ptnode *)NULL)
-		panic("psend: out of nodes");
 	freenode = ptfree;
 	ptfree  = freenode->ptnext;
-	freenode->ptnext = (struct ptnode *)NULL;
+	freenode->ptnext = (struct ptnode *) NULL;
 	freenode->ptmsg  = msg;
-	if (ptptr->pttail == (struct ptnode *)NULL)	/* empty queue */
+	if (ptptr->pttail == (struct ptnode *) NULL)	/* empty queue */
 		ptptr->pttail = ptptr->pthead = freenode;
 	else {
 		(ptptr->pttail)->ptnext = freenode;
 		ptptr->pttail = freenode;
 	}
 	signal(ptptr->ptrsem);
-	restore(ps);
+	restore();
 	return(OK);
 }