ISDN/HiSax: Move more code into the shared xmit_xpr_d()

Another bit of D-channel busy handling can move as well.

drivers/isdn/hisax/icc.c

@@ -255,10 +255,6 @@ icc_interrupt(struct IsdnCardState *cs, u_char val)
 			printk(KERN_WARNING "HiSax: ICC XMR\n");
 		}
 		if (exval & 0x40) {  /* XDU */
-			if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
-				del_timer(&cs->dbusytimer);
-			if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
-				sched_d_event(cs, D_CLEARBUSY);
 			xmit_xdu_d(cs, NULL);
 		}
 		if (exval & 0x04) {  /* MOS */

drivers/isdn/hisax/isac.c

@@ -249,10 +249,6 @@ isac_interrupt(struct IsdnCardState *cs, u_char val)
 			printk(KERN_WARNING "HiSax: ISAC XMR\n");
 		}
 		if (exval & 0x40) {  /* XDU */
-			if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
-				del_timer(&cs->dbusytimer);
-			if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
-				sched_d_event(cs, D_CLEARBUSY);
 			xmit_xdu_d(cs, NULL);
 		}
 		if (exval & 0x04) {  /* MOS */

drivers/isdn/hisax/isdnl1.h

@@ -251,6 +251,11 @@ xmit_xdu_d(struct IsdnCardState *cs, void (*reset_xmit)(struct IsdnCardState *cs
 	if (cs->debug & L1_DEB_WARN)
 		debugl1(cs, "D XDU");
 
+	if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
+		del_timer(&cs->dbusytimer);
+	if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
+		sched_d_event(cs, D_CLEARBUSY);
+
 	xmit_restart_d(cs);
 	if (reset_xmit)
 		reset_xmit(cs);

drivers/isdn/hisax/w6692.c

@@ -366,10 +366,6 @@ W6692_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		if (cs->debug & L1_DEB_WARN)
 			debugl1(cs, "W6692 D_EXIR %02x", exval);
 		if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) {	/* Transmit underrun/collision */
-			if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
-				del_timer(&cs->dbusytimer);
-			if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
-				sched_d_event(cs, D_CLEARBUSY);
 			xmit_xdu_d(cs, NULL);
 		}
 		if (exval & W_D_EXI_RDOV) {	/* RDOV */