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io_uring/io-wq: free worker if task_work creation is canceled
If we cancel the task_work, the worker will never come into existance. As this is the last reference to it, ensure that we get it freed appropriately. Cc: stable@vger.kernel.org Reported-by: 진호 <wnwlsgh98@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@@ -1230,6 +1230,7 @@ static void io_wq_cancel_tw_create(struct io_wq *wq)
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worker = container_of(cb, struct io_worker, create_work);
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io_worker_cancel_cb(worker);
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kfree(worker);
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}
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}
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