The id passed to ida_simple_remove has to be the one originally allocated with ida_simple_get, not the one after multipling by BCACHE_MINORS.
Signed-off-by: Liang Chen <[email protected]> --- drivers/md/bcache/super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index e57353e..9f64477 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -734,7 +734,8 @@ static void bcache_device_free(struct bcache_device *d) if (d->disk && d->disk->queue) blk_cleanup_queue(d->disk->queue); if (d->disk) { - ida_simple_remove(&bcache_minor, d->disk->first_minor); + ida_simple_remove(&bcache_minor, + d->disk->first_minor / BCACHE_MINORS); put_disk(d->disk); } @@ -784,7 +785,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size, if (!(d->bio_split = bioset_create(4, offsetof(struct bbio, bio))) || !(d->disk = alloc_disk(BCACHE_MINORS))) { - ida_simple_remove(&bcache_minor, minor); + ida_simple_remove(&bcache_minor, minor / BCACHE_MINORS); return -ENOMEM; } -- 1.8.3.1
