nvme-fc: don't call nvme_cleanup_cmd() for AENs

Asynchronous event notifications do not have an associated request.
When fcp_io() fails we unconditionally call nvme_cleanup_cmd() which
leads to a crash.

Fixes: 3346ebadcca7 ("nvme: move common call to nvme_cleanup_cmd to core layer")
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index cb0007592c12adfd0e42cf39ba66dac6cd1f56f5..e999a8c4b7e8798d3910a26e56f93a70cf97ca8b 100644 (file)
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2634,10 +2634,11 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
                opstate = atomic_xchg(&op->state, FCPOP_STATE_COMPLETE);
                __nvme_fc_fcpop_chk_teardowns(ctrl, op, opstate);
 
-               if (!(op->flags & FCOP_FLAGS_AEN))
+               if (!(op->flags & FCOP_FLAGS_AEN)) {
                        nvme_fc_unmap_data(ctrl, op->rq, op);
+                       nvme_cleanup_cmd(op->rq);
+               }
 
-               nvme_cleanup_cmd(op->rq);
                nvme_fc_ctrl_put(ctrl);
 
                if (ctrl->rport->remoteport.port_state == FC_OBJSTATE_ONLINE &&