nvme-tcp: cancel async events before freeing event struct
[ Upstream commit ceb1e0874d
]
Cancel async event work in case async event has been queued up, and
nvme_tcp_submit_async_event() runs after event has been freed.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1507,6 +1507,7 @@ static struct blk_mq_tag_set *nvme_tcp_alloc_tagset(struct nvme_ctrl *nctrl,
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static void nvme_tcp_free_admin_queue(struct nvme_ctrl *ctrl)
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static void nvme_tcp_free_admin_queue(struct nvme_ctrl *ctrl)
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{
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{
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if (to_tcp_ctrl(ctrl)->async_req.pdu) {
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if (to_tcp_ctrl(ctrl)->async_req.pdu) {
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cancel_work_sync(&ctrl->async_event_work);
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nvme_tcp_free_async_req(to_tcp_ctrl(ctrl));
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nvme_tcp_free_async_req(to_tcp_ctrl(ctrl));
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to_tcp_ctrl(ctrl)->async_req.pdu = NULL;
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to_tcp_ctrl(ctrl)->async_req.pdu = NULL;
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}
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}
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