Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/iio/trigger/iio-trig-loop.c b/drivers/iio/trigger/iio-trig-loop.c
index 94a90e0..4a00668 100644
--- a/drivers/iio/trigger/iio-trig-loop.c
+++ b/drivers/iio/trigger/iio-trig-loop.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2016 Jonathan Cameron <jic23@kernel.org>
  *
- * Licensed under the GPL-2.
- *
  * Based on a mashup of the hrtimer trigger and continuous sampling proposal of
  * Gregor Boirie <gregor.boirie@parrot.com>
  *
@@ -60,7 +59,7 @@
 	if (state) {
 		loop_trig->task = kthread_run(iio_loop_thread,
 					      trig, trig->name);
-		if (unlikely(IS_ERR(loop_trig->task))) {
+		if (IS_ERR(loop_trig->task)) {
 			dev_err(&trig->dev,
 				"failed to create trigger loop thread\n");
 			return PTR_ERR(loop_trig->task);