Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h
index 7e6c777..e525f69 100644
--- a/include/linux/fault-inject.h
+++ b/include/linux/fault-inject.h
@@ -11,7 +11,7 @@
 
 /*
  * For explanation of the elements of this struct, see
- * Documentation/fault-injection/fault-injection.txt
+ * Documentation/fault-injection/fault-injection.rst
  */
 struct fault_attr {
 	unsigned long probability;