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Subject[PATCH AUTOSEL for 4.9 43/54] nvmet: cancel fatal error and flush async work before free controller
Date
From: Sagi Grimberg <sagi@grimberg.me>

[ Upstream commit 06406d81a2d7cfb8abcc4fa6cdfeb8e5897007c5 ]

Make sure they are not running and we can free the controller
safely.

Signed-off-by: Roy Shterman <roys@lightbitslabs.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
drivers/nvme/target/core.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 55ce769cecee..fbd6d487103f 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -816,6 +816,9 @@ static void nvmet_ctrl_free(struct kref *ref)
list_del(&ctrl->subsys_entry);
mutex_unlock(&subsys->lock);

+ flush_work(&ctrl->async_event_work);
+ cancel_work_sync(&ctrl->fatal_err_work);
+
ida_simple_remove(&subsys->cntlid_ida, ctrl->cntlid);
nvmet_subsys_put(subsys);

--
2.11.0
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