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authorJon Derrick <jonathan.derrick@intel.com>2015-06-30 20:22:52 +0300
committerJens Axboe <axboe@fb.com>2015-07-02 18:01:25 +0300
commit758dd7fdffd60507624edce34fff122a63163b3f (patch)
tree05f3a21ac88c42ac817e6c38e7e660059c56f8f7 /drivers/block
parenta20135ffbc44545596f9b99c970de097fb497bdd (diff)
downloadlinux-758dd7fdffd60507624edce34fff122a63163b3f.tar.xz
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>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/nvme-core.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 34338d7438f5..d1d6141920d3 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1474,6 +1474,7 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
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 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
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 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
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);