diff --git a/block/genhd.c b/block/genhd.c index 9fa734cb9cbd3a333027bc060db4870dcc610891..c826db33a73e98a1cf78e1120cdb6fa5f1996fa9 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -539,7 +539,10 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, * Take an extra ref on queue which will be put on disk_release() * so that it sticks around as long as @disk is there. */ - WARN_ON_ONCE(!blk_get_queue(disk->queue)); + if (blk_get_queue(disk->queue)) + set_bit(GD_QUEUE_REF, &disk->state); + else + WARN_ON_ONCE(1); disk_add_events(disk); blk_integrity_add(disk); @@ -1107,7 +1110,7 @@ static void disk_release(struct device *dev) kfree(disk->random); xa_destroy(&disk->part_tbl); bdput(disk->part0); - if (disk->queue) + if (test_bit(GD_QUEUE_REF, &disk->state) && disk->queue) blk_put_queue(disk->queue); kfree(disk); } diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 6fc26f7bdf71ea48a7ca1693217f8be150d2d5d7..4d3ee8b6b297bd490b1d32976255ee31b96fce97 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -153,6 +153,7 @@ struct gendisk { unsigned long state; #define GD_NEED_PART_SCAN 0 #define GD_READ_ONLY 1 +#define GD_QUEUE_REF 2 struct kobject *slave_dir; struct timer_rand_state *random;