Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
index 3800258..eef7ec7 100644
--- a/sound/atmel/ac97c.c
+++ b/sound/atmel/ac97c.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for Atmel AC97C
  *
  * Copyright (C) 2005-2009 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 #include <linux/clk.h>
 #include <linux/delay.h>
@@ -603,11 +600,9 @@
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &atmel_ac97_capture_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &atmel_ac97_playback_ops);
 
-	retval = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 			&chip->pdev->dev, hw.periods_min * hw.period_bytes_min,
 			hw.buffer_bytes_max);
-	if (retval)
-		return retval;
 
 	pcm->private_data = chip;
 	pcm->info_flags = 0;