From 34f84aefe2ba0a77431cc0c0808c5c0239b6ba43 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 2 Jun 2021 09:53:32 +0300 Subject: floppy: use blk_mq_alloc_disk and blk_cleanup_disk Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20210602065345.355274-18-hch@lst.de Signed-off-by: Jens Axboe --- drivers/block/floppy.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) (limited to 'drivers/block') diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 8a9d22207c59..cbed9776f285 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4491,23 +4491,15 @@ static bool floppy_available(int drive) static int floppy_alloc_disk(unsigned int drive, unsigned int type) { struct gendisk *disk; - int err; - - disk = alloc_disk(1); - if (!disk) - return -ENOMEM; - disk->queue = blk_mq_init_queue(&tag_sets[drive]); - if (IS_ERR(disk->queue)) { - err = PTR_ERR(disk->queue); - disk->queue = NULL; - put_disk(disk); - return err; - } + disk = blk_mq_alloc_disk(&tag_sets[drive], NULL); + if (IS_ERR(disk)) + return PTR_ERR(disk); blk_queue_max_hw_sectors(disk->queue, 64); disk->major = FLOPPY_MAJOR; disk->first_minor = TOMINOR(drive) | (type << 2); + disk->minors = 1; disk->fops = &floppy_fops; disk->events = DISK_EVENT_MEDIA_CHANGE; if (type) @@ -4727,10 +4719,8 @@ out_put_disk: if (!disks[drive][0]) break; del_timer_sync(&motor_off_timer[drive]); - blk_cleanup_queue(disks[drive][0]->queue); - disks[drive][0]->queue = NULL; + blk_cleanup_disk(disks[drive][0]); blk_mq_free_tag_set(&tag_sets[drive]); - put_disk(disks[drive][0]); } return err; } -- cgit v1.2.3