From: Luis Chamberlain Date: Mon, 27 Sep 2021 22:03:01 +0000 (-0700) Subject: block/ataflop: provide a helper for cleanup up an atari disk X-Git-Tag: v5.16-rc1~215^2~58 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=deae1138d04758c7f8939fcb8aee330bc37e3015;p=thirdparty%2Fkernel%2Fstable.git block/ataflop: provide a helper for cleanup up an atari disk Instead of using two separate code paths for cleaning up an atari disk, use one. We take the more careful approach to check for *all* disk types, as is done on exit. The init path didn't have that check as the alternative disk types are only probed for later, they are not initialized by default. Yes, there is a shared tag for all disks. Signed-off-by: Luis Chamberlain Link: https://lore.kernel.org/r/20210927220302.1073499-14-mcgrof@kernel.org Signed-off-by: Jens Axboe --- diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index fe16105ecdf53..a07cb9b79a6c6 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -2010,6 +2010,20 @@ static void ataflop_probe(dev_t dev) mutex_unlock(&ataflop_probe_lock); } +static void atari_cleanup_floppy_disk(struct atari_floppy_struct *fs) +{ + int type; + + for (type = 0; type < NUM_DISK_MINORS; type++) { + if (!fs->disk[type]) + continue; + if (fs->registered[type]) + del_gendisk(fs->disk[type]); + blk_cleanup_disk(fs->disk[type]); + } + blk_mq_free_tag_set(&fs->tag_set); +} + static int __init atari_floppy_init (void) { int i; @@ -2080,10 +2094,8 @@ static int __init atari_floppy_init (void) return 0; err: - while (--i >= 0) { - blk_cleanup_disk(unit[i].disk[0]); - blk_mq_free_tag_set(&unit[i].tag_set); - } + while (--i >= 0) + atari_cleanup_floppy_disk(&unit[i]); unregister_blkdev(FLOPPY_MAJOR, "fd"); out_unlock: @@ -2132,18 +2144,10 @@ __setup("floppy=", atari_floppy_setup); static void __exit atari_floppy_exit(void) { - int i, type; + int i; - for (i = 0; i < FD_MAX_UNITS; i++) { - for (type = 0; type < NUM_DISK_MINORS; type++) { - if (!unit[i].disk[type]) - continue; - if (unit[i].registered[type]) - del_gendisk(unit[i].disk[type]); - blk_cleanup_disk(unit[i].disk[type]); - } - blk_mq_free_tag_set(&unit[i].tag_set); - } + for (i = 0; i < FD_MAX_UNITS; i++) + atari_cleanup_floppy_disk(&unit[i]); unregister_blkdev(FLOPPY_MAJOR, "fd"); del_timer_sync(&fd_timer);