befs: fix typos in datastream.c

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Salah Triki <salah.triki@gmail.com>

fs/befs/datastream.c

@@ -37,7 +37,7 @@ static int befs_find_brun_dblindirect(struct super_block *sb,
 /**
  * befs_read_datastream - get buffer_head containing data, starting from pos.
  * @sb: Filesystem superblock
- * @ds: datastrem to find data with
+ * @ds: datastream to find data with
  * @pos: start of data
  * @off: offset of data in buffer_head->b_data
  *
@@ -115,7 +115,7 @@ befs_fblock2brun(struct super_block *sb, const befs_data_stream *data,
 /**
  * befs_read_lsmylink - read long symlink from datastream.
  * @sb: Filesystem superblock 
- * @ds: Datastrem to read from
+ * @ds: Datastream to read from
  * @buff: Buffer in which to place long symlink data
  * @len: Length of the long symlink in bytes
  *
@@ -183,7 +183,7 @@ befs_count_blocks(struct super_block *sb, const befs_data_stream *ds)
 		metablocks += ds->indirect.len;
 
 	/*
-	   Double indir block, plus all the indirect blocks it mapps
+	   Double indir block, plus all the indirect blocks it maps.
 	   In the double-indirect range, all block runs of data are
 	   BEFS_DBLINDIR_BRUN_LEN blocks long. Therefore, we know 
 	   how many data block runs are in the double-indirect region,