ide: convert to rq pos and nr_sectors accessors

ide doesn't manipulate request fields anymore and thus all hard and
their soft equivalents are always equal.  Convert all references to
accessors.

[ Impact: use pos and nr_sectors accessors ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Borislav Petkov <petkovbb@googlemail.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c
index 248a54b..c2a16a8 100644
--- a/drivers/ide/pdc202xx_old.c
+++ b/drivers/ide/pdc202xx_old.c
@@ -177,7 +177,7 @@
 		u8 clock = inb(high_16 + 0x11);
 
 		outb(clock | (hwif->channel ? 0x08 : 0x02), high_16 + 0x11);
-		word_count = (rq->nr_sectors << 8);
+		word_count = (blk_rq_sectors(rq) << 8);
 		word_count = (rq_data_dir(rq) == READ) ?
 					word_count | 0x05000000 :
 					word_count | 0x06000000;