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amiflop: use blk_mq_alloc_disk and blk_cleanup_disk

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Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210602065345.355274-29-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-06-02 09:53:43 +03:00 committed by Jens Axboe
parent c06cf063b3
commit f6d8297412
1 changed files with 4 additions and 12 deletions
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16
drivers/block/amiflop.c
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@ -1781,15 +1781,13 @@ static int fd_alloc_disk(int drive, int system)
{
struct gendisk *disk;
disk = alloc_disk(1);
if (!disk)
goto out;
disk->queue = blk_mq_init_queue(&unit[drive].tag_set);
if (IS_ERR(disk->queue))
goto out_put_disk;
disk = blk_mq_alloc_disk(&unit[drive].tag_set, NULL);
if (IS_ERR(disk))
return PTR_ERR(disk);
disk->major = FLOPPY_MAJOR;
disk->first_minor = drive + system;
disk->minors = 1;
disk->fops = &floppy_fops;
disk->events = DISK_EVENT_MEDIA_CHANGE;
if (system)
@ -1802,12 +1800,6 @@ static int fd_alloc_disk(int drive, int system)
unit[drive].gendisk[system] = disk;
add_disk(disk);
return 0;
out_put_disk:
disk->queue = NULL;
put_disk(disk);
out:
return -ENOMEM;
}
static int fd_alloc_drive(int drive)