Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index e5d6ee6..0b202e0 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -603,9 +603,9 @@
 }
 
 /**
- * ext4_should_retry_alloc()
+ * ext4_should_retry_alloc() - check if a block allocation should be retried
  * @sb:			super block
- * @retries		number of attemps has been made
+ * @retries:		number of attemps has been made
  *
  * ext4_should_retry_alloc() is called when ENOSPC is returned, and if
  * it is profitable to retry the operation, this function will wait