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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-12-07 12:52:03 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2009-12-07 12:51:36 +0100 |
| commit | 8fd138c366a8a302d9da8a428c6e927c8bff7d35 (patch) | |
| tree | 23b406a120390a6631fab5ca2f35d91395971c3c /drivers/s390/char/tape_block.c | |
| parent | 1b52fff059d660d4bf83d97c389dd80f1e6aad9a (diff) | |
| download | linux-8fd138c366a8a302d9da8a428c6e927c8bff7d35.tar.gz linux-8fd138c366a8a302d9da8a428c6e927c8bff7d35.tar.bz2 linux-8fd138c366a8a302d9da8a428c6e927c8bff7d35.zip | |
[S390] tape: cleanup reference counting
Rename tape_get_device to tape_find_device and tape_get_device_reference
to tape_get_device. The old names didn't make too much sense.
Follow the get_device()/put_device() semantic and convert tape_put_device
to a void function.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char/tape_block.c')
| -rw-r--r-- | drivers/s390/char/tape_block.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c index 0c0705b91c28..c97c6aac8ed5 100644 --- a/drivers/s390/char/tape_block.c +++ b/drivers/s390/char/tape_block.c @@ -239,7 +239,7 @@ tapeblock_setup_device(struct tape_device * device) disk->major = tapeblock_major; disk->first_minor = device->first_minor; disk->fops = &tapeblock_fops; - disk->private_data = tape_get_device_reference(device); + disk->private_data = tape_get_device(device); disk->queue = blkdat->request_queue; set_capacity(disk, 0); sprintf(disk->disk_name, "btibm%d", @@ -247,11 +247,11 @@ tapeblock_setup_device(struct tape_device * device) blkdat->disk = disk; blkdat->medium_changed = 1; - blkdat->request_queue->queuedata = tape_get_device_reference(device); + blkdat->request_queue->queuedata = tape_get_device(device); add_disk(disk); - tape_get_device_reference(device); + tape_get_device(device); INIT_WORK(&blkdat->requeue_task, tapeblock_requeue); return 0; @@ -274,13 +274,14 @@ tapeblock_cleanup_device(struct tape_device *device) } del_gendisk(device->blk_data.disk); - device->blk_data.disk->private_data = - tape_put_device(device->blk_data.disk->private_data); + device->blk_data.disk->private_data = NULL; + tape_put_device(device); put_disk(device->blk_data.disk); device->blk_data.disk = NULL; cleanup_queue: - device->blk_data.request_queue->queuedata = tape_put_device(device); + device->blk_data.request_queue->queuedata = NULL; + tape_put_device(device); blk_cleanup_queue(device->blk_data.request_queue); device->blk_data.request_queue = NULL; @@ -363,7 +364,7 @@ tapeblock_open(struct block_device *bdev, fmode_t mode) struct tape_device * device; int rc; - device = tape_get_device_reference(disk->private_data); + device = tape_get_device(disk->private_data); if (device->required_tapemarks) { DBF_EVENT(2, "TBLOCK: missing tapemarks\n"); |