Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/firewire/digi00x/digi00x-proc.c b/sound/firewire/digi00x/digi00x-proc.c
index 6996d5a..00b047f 100644
--- a/sound/firewire/digi00x/digi00x-proc.c
+++ b/sound/firewire/digi00x/digi00x-proc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * digi00x-proc.c - a part of driver for Digidesign Digi 002/003 family
  *
  * Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
  */
 
 #include "digi00x.h"
@@ -80,20 +79,8 @@
 		return;
 
 	root->mode = S_IFDIR | 0555;
-	if (snd_info_register(root) < 0) {
-		snd_info_free_entry(root);
-		return;
-	}
 
 	entry = snd_info_create_card_entry(dg00x->card, "clock", root);
-	if (entry == NULL) {
-		snd_info_free_entry(root);
-		return;
-	}
-
-	snd_info_set_text_ops(entry, dg00x, proc_read_clock);
-	if (snd_info_register(entry) < 0) {
-		snd_info_free_entry(entry);
-		snd_info_free_entry(root);
-	}
+	if (entry)
+		snd_info_set_text_ops(entry, dg00x, proc_read_clock);
 }