A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge "block: Fix use-after-free issue while accessing ioscheduler lock"

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qctecmdr 2020-09-22 05:18:15 -07:00 • committed by Gerrit - the friendly Code Review server
commit 75a9b99eb8
2 changed files with 6 additions and 3 deletions
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1
block/blk-mq-sysfs.c
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@ -36,7 +36,6 @@ static void blk_mq_hw_sysfs_release(struct kobject *kobj)
struct blk_mq_hw_ctx *hctx = container_of(kobj, struct blk_mq_hw_ctx,
kobj);
cancel_delayed_work_sync(&hctx->run_work);
if (hctx->flags & BLK_MQ_F_BLOCKING)
cleanup_srcu_struct(hctx->srcu);

8
block/blk-sysfs.c
View file

@ -891,9 +891,13 @@ static void __blk_release_queue(struct work_struct *work)
blk_free_queue_stats(q->stats);
if (queue_is_mq(q))
if (queue_is_mq(q)) {
struct blk_mq_hw_ctx *hctx;
int i;
cancel_delayed_work_sync(&q->requeue_work);
queue_for_each_hw_ctx(q, hctx, i)
cancel_delayed_work_sync(&hctx->run_work);
}
blk_exit_queue(q);
blk_queue_free_zone_bitmaps(q);