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nvme-rdma: cancel async events before freeing event struct

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Cancel async event work in case async event has been queued up, and
nvme_rdma_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>
This commit is contained in:
David Milburn 2020-09-02 17:42:52 -05:00 committed by Christoph Hellwig
parent e126e8210e
commit 925dd04c1f
1 changed files with 1 additions and 0 deletions
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1
drivers/nvme/host/rdma.c
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@ -835,6 +835,7 @@ static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl,
blk_mq_free_tag_set(ctrl->ctrl.admin_tagset); blk_mq_free_tag_set(ctrl->ctrl.admin_tagset);
} }
if (ctrl->async_event_sqe.data) { if (ctrl->async_event_sqe.data) {
cancel_work_sync(&ctrl->ctrl.async_event_work);
nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe, nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe,
sizeof(struct nvme_command), DMA_TO_DEVICE); sizeof(struct nvme_command), DMA_TO_DEVICE);
ctrl->async_event_sqe.data = NULL; ctrl->async_event_sqe.data = NULL;