drivers/tty/hvc/hvc_tile.c: use PTR_ERR_OR_ZERO

replace IS_ERR/PTR_ERR

Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

drivers/tty/hvc/hvc_tile.c

@@ -196,7 +196,7 @@ static int __init hvc_tile_init(void)
 #ifndef __tilegx__
 	struct hvc_struct *hp;
 	hp = hvc_alloc(0, 0, &hvc_tile_get_put_ops, 128);
-	return IS_ERR(hp) ? PTR_ERR(hp) : 0;
+	return PTR_ERR_OR_ZERO(hp);
 #else
 	platform_device_register(&hvc_tile_pdev);
 	return platform_driver_register(&hvc_tile_driver);