diff options
| author | Hannes Reinecke <hare@suse.de> | 2021-05-26 17:23:15 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-18 09:58:59 +0200 |
| commit | ed4bee6e1bb7419311b72ad464e5a383aff69a40 (patch) | |
| tree | e425e64e3dd02d17ce2f98cea25f79f08b5a1600 /drivers/nvme | |
| parent | 31ac5531110ace7c1e35709f1c9ac5b9bc5443d3 (diff) | |
nvme-loop: reset queue count to 1 in nvme_loop_destroy_io_queues()
[ Upstream commit a6c144f3d2e230f2b3ac5ed8c51e0f0391556197 ]
The queue count is increased in nvme_loop_init_io_queues(), so we
need to reset it to 1 at the end of nvme_loop_destroy_io_queues().
Otherwise the function is not re-entrant safe, and crash will happen
during concurrent reset and remove calls.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/target/loop.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 82b87a4c50f6..b4f5503ae570 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -288,6 +288,7 @@ static void nvme_loop_destroy_io_queues(struct nvme_loop_ctrl *ctrl) clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[i].flags); nvmet_sq_destroy(&ctrl->queues[i].nvme_sq); } + ctrl->ctrl.queue_count = 1; } static int nvme_loop_init_io_queues(struct nvme_loop_ctrl *ctrl) |