commit 62314e405fa101dbb82563394f9dfc225e3f1167 upstream
The queue count says the highest queue that's been allocated, so don't
reallocate a queue lower than that.
Fixes: 147b27e4bd0 ("nvme-pci: allocate device queues storage space at probe")
CC: Sagi Grimberg <sagi@xxxxxxxxxxx>
CC: Keith Busch <keith.busch@xxxxxxxxx>
CC: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Jon Derrick <jonathan.derrick@xxxxxxxxx>
---
drivers/nvme/host/pci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 51e8589..bfc42f2 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1246,6 +1246,9 @@ static int nvme_alloc_queue(struct nvme_dev *dev, int qid,
{
struct nvme_queue *nvmeq = &dev->queues[qid];
+ if (dev->ctrl.queue_count > qid)
+ return 0;
+
nvmeq->cqes = dma_zalloc_coherent(dev->dev, CQ_SIZE(depth),
&nvmeq->cq_dma_addr, GFP_KERNEL);
if (!nvmeq->cqes)
--
1.8.3.1
