NVMe: Fix irq freeing when queue_request_irq fails
Fixes an issue when queue_reuest_irq fails in nvme_setup_io_queues. This
patch initializes all vectors to -1 and resets the vector to -1 in the
case of a failure in queue_request_irq. This avoids the free_irq in
nvme_suspend_queue if the queue did not get an irq.
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 34338d7..d1d6141 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1474,6 +1474,7 @@
nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride];
nvmeq->q_depth = depth;
nvmeq->qid = qid;
+ nvmeq->cq_vector = -1;
dev->queues[qid] = nvmeq;
/* make sure queue descriptor is set before queue count, for kthread */
@@ -1726,8 +1727,10 @@
nvmeq->cq_vector = 0;
result = queue_request_irq(dev, nvmeq, nvmeq->irqname);
- if (result)
+ if (result) {
+ nvmeq->cq_vector = -1;
goto free_nvmeq;
+ }
return result;
@@ -2213,8 +2216,10 @@
dev->max_qid = nr_io_queues;
result = queue_request_irq(dev, adminq, adminq->irqname);
- if (result)
+ if (result) {
+ adminq->cq_vector = -1;
goto free_queues;
+ }
/* Free previously allocated queues that are no longer usable */
nvme_free_queues(dev, nr_io_queues + 1);