block: replace sizeof(rq->cmd) with BLK_MAX_CDB

This is a preparation for changing rq->cmd from the static array to a
pointer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Boaz Harrosh <bharrosh@panasas.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index fe9df38f62cc..68e7f19dc036 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -782,7 +782,7 @@ static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive)
 
         sector_div(frame, queue_hardsect_size(drive->queue) >> SECTOR_BITS);
 
-        memset(rq->cmd, 0, sizeof(rq->cmd));
+        memset(rq->cmd, 0, BLK_MAX_CDB);
         rq->cmd[0] = GPCMD_SEEK;
         put_unaligned(cpu_to_be32(frame), (unsigned int *) &rq->cmd[2]);
 
@@ -1694,7 +1694,7 @@ static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
         long block = (long)rq->hard_sector / (hard_sect >> 9);
         unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9);
 
-        memset(rq->cmd, 0, sizeof(rq->cmd));
+        memset(rq->cmd, 0, BLK_MAX_CDB);
 
         if (rq_data_dir(rq) == READ)
                 rq->cmd[0] = GPCMD_READ_10;