Sagi Grimberg b6bb1722f3
nvme-rdma: fix possible use-after-free in transport error_recovery work ...
While nvme_rdma_submit_async_event_work is checking the ctrl and queue
state before preparing the AER command and scheduling io_work, in order
to fully prevent a race where this check is not reliable the error
recovery work must flush async_event_work before continuing to destroy
the admin queue after setting the ctrl state to RESETTING such that
there is no race .submit_async_event and the error recovery handler
itself changing the ctrl state.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me >
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