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null_blk: clean up null_del_dev() to use cached dev pointer

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Replace remaining nullb->dev dereferences with the already-cached
local dev variable. No functional change.

Signed-off-by: Zizhi Wo <wozizhi@huawei.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260725022509.714271-7-wozizhi@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Zizhi Wo
2026-07-25 10:25:05 +08:00
committed by Jens Axboe
parent 2a6357a9b9
commit 5bce98f9e7
1 changed files with 2 additions and 2 deletions
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4
drivers/block/null_blk/main.c
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@@ -1779,7 +1779,7 @@ static void null_del_dev(struct nullb *nullb)
del_gendisk(nullb->disk);
if (test_bit(NULLB_DEV_FL_THROTTLED, &nullb->dev->flags)) {
if (test_bit(NULLB_DEV_FL_THROTTLED, &dev->flags)) {
hrtimer_cancel(&nullb->bw_timer);
atomic_long_set(&nullb->cur_bytes, LONG_MAX);
blk_mq_start_stopped_hw_queues(nullb->q, true);
@@ -1791,7 +1791,7 @@ static void null_del_dev(struct nullb *nullb)
blk_mq_free_tag_set(nullb->tag_set);
kfree(nullb->queues);
if (null_cache_active(nullb))
null_free_device_storage(nullb->dev, true);
null_free_device_storage(dev, true);
kfree(nullb);
dev->nullb = NULL;
}