VIDEO: xen-fb, switch to for_each_console

Use newly added for_each_console for iterating consoles.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: virtualization@lists.osdl.org
Cc: xen-devel@lists.xensource.com
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/video/xen-fbfront.c

@@ -492,7 +492,7 @@ xenfb_make_preferred_console(void)
 		return;
 
 	acquire_console_sem();
-	for (c = console_drivers; c; c = c->next) {
+	for_each_console(c) {
 		if (!strcmp(c->name, "tty") && c->index == 0)
 			break;
 	}