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nvme-fc: cancel async events before freeing event struct 

[ Upstream commit e126e8210e ]

Cancel async event work in case async event has been queued up, and
nvme_fc_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>
5.4-rM2-2.2.x-imx-squashed
David Milburn 2020-09-02 17:42:54 -05:00 committed by Greg Kroah-Hartman
parent 4951def1e2
commit 103e82d5e8
1 changed files with 1 additions and 0 deletions
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drivers/nvme/host/fc.c
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@ -1820,6 +1820,7 @@ nvme_fc_term_aen_ops(struct nvme_fc_ctrl *ctrl)
struct nvme_fc_fcp_op *aen_op;
int i;
cancel_work_sync(&ctrl->ctrl.async_event_work);
aen_op = ctrl->aen_ops;
for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
if (!aen_op->fcp_req.private)