From: Wenbo Wang <wenbo.wang@xxxxxxxxxxxx> During reset process, the nvme_dev->bar (ioremapped) may change, so nvmeq->q_db shall be also updated by nvme_init_queue(). Currently nvmeq irq is enabled before queue init, so a spurious interrupt triggered nvme_process_cq may access nvmeq->q_db just before it is updated, this could cause kernel panic. Signed-off-by: Wenbo Wang <wenbo.wang@xxxxxxxxxxxx> Reviewed-by: Wenwei Tao <wenwei.tao@xxxxxxxxxxxx>
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