ide: remove ide_drive_t.usage

This field is no longer used by the core IDE code so fix ide-{disk,floppy}
drivers to keep openers count in the driver specific objects and remove
it from ide-{cd,scsi,tape} drivers (it was write-only).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 0 insertions, 8 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index c6eec0413a6c..be6d818d0db8 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -4792,15 +4792,10 @@ static int idetape_open(struct inode *inode, struct file *filp)
 {
         struct gendisk *disk = inode->i_bdev->bd_disk;
         struct ide_tape_obj *tape;
-        ide_drive_t *drive;
 
         if (!(tape = ide_tape_get(disk)))
                 return -ENXIO;
 
-        drive = tape->drive;
-
-        drive->usage++;
-
         return 0;
 }
 
@@ -4808,9 +4803,6 @@ static int idetape_release(struct inode *inode, struct file *filp)
 {
         struct gendisk *disk = inode->i_bdev->bd_disk;
         struct ide_tape_obj *tape = ide_tape_g(disk);
-        ide_drive_t *drive = tape->drive;
-
-        drive->usage--;
 
         ide_tape_put(tape);