ide: add ide_end_rq() (v2)

* Move request dequeuing from __ide_end_request() to ide_end_request().

* Rename __ide_end_request() to ide_end_rq() and export it.

* Fix ide_end_rq() to pass original blk_end_request() return value.

* ide_end_dequeued_request() is used only in cdrom_end_request()
  so inline it there and then remove the function.

v2:
* Remove needless BUG_ON() while at it (start_request()'s one is enough).

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/include/linux/ide.h b/include/linux/ide.h
index f9decc9..f910f4c 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1131,8 +1131,8 @@
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
+int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int);
 int ide_end_request(ide_drive_t *, int, int);
-int ide_end_dequeued_request(ide_drive_t *, struct request *, int, int);
 void ide_kill_rq(ide_drive_t *, struct request *);
 
 void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,