kernel-api docbook: fix content problems

Fix kernel-api docbook contents problems.

docproc: linux-2.6.23-git13/include/asm-x86/unaligned_32.h: No such file or directory
Warning(linux-2.6.23-git13//include/linux/list.h:482): bad line: 			of list entry
Warning(linux-2.6.23-git13//mm/filemap.c:864): No description found for parameter 'ra'
Warning(linux-2.6.23-git13//block/ll_rw_blk.c:3760): No description found for parameter 'req'
Warning(linux-2.6.23-git13//include/linux/input.h:1077): No description found for parameter 'private'
Warning(linux-2.6.23-git13//include/linux/input.h:1077): No description found for parameter 'cdev'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: WU Fengguang <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 3935469..501edfa 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3739,7 +3739,7 @@
 
 /**
  * end_request - end I/O on the current segment of the request
- * @rq:		the request being processed
+ * @req:	the request being processed
  * @uptodate:	error value or 0/1 uptodate flag
  *
  * Description: