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authorKeith Busch <keith.busch@intel.com>2018-01-23 09:16:19 -0700
committerChristoph Hellwig <hch@lst.de>2018-01-23 20:15:34 +0100
commit62314e405fa101dbb82563394f9dfc225e3f1167 (patch)
tree6996c5dba29363a50f5c1295c78a1f3052a6f8b8 /drivers/nvme/host
parent475a055e62a1eb92f4358ad8a9059df973c190ac (diff)
nvme-pci: Fix queue double allocations
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") Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host')
-rw-r--r--drivers/nvme/host/pci.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index a2ffb557b616..c46c239cc1ff 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1384,6 +1384,9 @@ 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)