Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/media/rc/rc-loopback.c b/drivers/media/rc/rc-loopback.c
index 3822d9e..ef8b83b 100644
--- a/drivers/media/rc/rc-loopback.c
+++ b/drivers/media/rc/rc-loopback.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Loopback driver for rc-core,
  *
@@ -6,17 +7,6 @@
  * This driver receives TX data and passes it back as RX data,
  * which is useful for (scripted) debugging of rc-core without
  * having to use actual hardware.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/device.h>
@@ -103,7 +93,7 @@
 	struct loopback_dev *lodev = dev->priv;
 	u32 rxmask;
 	unsigned i;
-	DEFINE_IR_RAW_EVENT(rawir);
+	struct ir_raw_event rawir = {};
 
 	if (lodev->txcarrier < lodev->rxcarriermin ||
 	    lodev->txcarrier > lodev->rxcarriermax) {