[PATCH] Remaining task queue to work queue conversion.

Somewhere in the transition of task queue to the work queue, in
stallion.c, some of the schedule_task were left out from being converted
to schedule_work.  This fixes it.

drivers/char/stallion.c

@@ -4234,7 +4234,7 @@ static void stl_cd1400mdmisr(stlpanel_t *panelp, int ioaddr)
 	misr = inb(ioaddr + EREG_DATA);
 	if (misr & MISR_DCD) {
 		set_bit(ASYI_DCDCHANGE, &portp->istate);
-		schedule_task(&portp->tqueue);
+		schedule_work(&portp->tqueue);
 		portp->stats.modem++;
 	}
 
@@ -5031,7 +5031,7 @@ static void stl_sc26198txisr(stlport_t *portp)
 	if ((len == 0) || ((len < STL_TXBUFLOW) &&
 	    (test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
 		set_bit(ASYI_TXLOW, &portp->istate);
-		schedule_task(&portp->tqueue); 
+		schedule_work(&portp->tqueue); 
 	}
 
 	if (len == 0) {
@@ -5248,7 +5248,7 @@ static void stl_sc26198otherisr(stlport_t *portp, unsigned int iack)
 		ipr = stl_sc26198getreg(portp, IPR);
 		if (ipr & IPR_DCDCHANGE) {
 			set_bit(ASYI_DCDCHANGE, &portp->istate);
-			schedule_task(&portp->tqueue); 
+			schedule_work(&portp->tqueue); 
 			portp->stats.modem++;
 		}
 		break;