[PATCH AUTOSEL 5.4 13/22] nvme-fc: cancel async events before freeing event struct

[Sasha Levin]

From: David Milburn <dmilburn at redhat.com>

[ Upstream commit e126e8210e950bb83414c4f57b3120ddb8450742 ]

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 at redhat.com>
Reviewed-by: Keith Busch <kbusch at kernel.org>
Reviewed-by: Sagi Grimberg <sagi at grimberg.me>
Signed-off-by: Christoph Hellwig <hch at lst.de>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 drivers/nvme/host/fc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index dce4d6782ceb1..dae050d1f814d 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -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)
-- 
2.25.1