Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/Documentation/ABI/testing/sysfs-block-device b/Documentation/ABI/testing/sysfs-block-device
index 82ef6ea..17f2bc7 100644
--- a/Documentation/ABI/testing/sysfs-block-device
+++ b/Documentation/ABI/testing/sysfs-block-device
@@ -45,7 +45,7 @@
 		- Values below -2 are rejected with -EINVAL
 
 		For more information, see
-		Documentation/laptops/disk-shock-protection.txt
+		Documentation/admin-guide/laptops/disk-shock-protection.rst
 
 
 What:		/sys/block/*/device/ncq_prio_enable