[POWERPC] Fix viocons for irq breakage

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c
index a362ee9..6d2e314 100644
--- a/drivers/char/viocons.c
+++ b/drivers/char/viocons.c
@@ -947,7 +947,7 @@
 				 */
 				continue;
 			} else if (vio_sysrq_pressed) {
-				handle_sysrq(cevent->data[index], NULL, tty);
+				handle_sysrq(cevent->data[index], tty);
 				vio_sysrq_pressed = 0;
 				/*
 				 * continue because we don't want to add