AuxXxilium/linux_dsm_epyc7002
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NVMe: Only release requested regions

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The NVMe driver only requests the PCIe device's memory regions but releases
all possible regions (including eventual I/O regions). This leads to a stale
warning entry in dmesg about freeing non existent resources.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Johannes Thumshirn 2016-05-10 15:14:28 +02:00 committed by Jens Axboe
parent 1decabc1a7
commit edb50a5403
1 changed files with 7 additions and 2 deletions
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9
drivers/nvme/host/pci.c
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@ -1679,9 +1679,14 @@ static int nvme_pci_enable(struct nvme_dev *dev)
static void nvme_dev_unmap(struct nvme_dev *dev) static void nvme_dev_unmap(struct nvme_dev *dev)
{ {
struct pci_dev *pdev = to_pci_dev(dev->dev);
int bars;
if (dev->bar) if (dev->bar)
iounmap(dev->bar); iounmap(dev->bar);
pci_release_regions(to_pci_dev(dev->dev));
bars = pci_select_bars(pdev, IORESOURCE_MEM);
pci_release_selected_regions(pdev, bars);
} }
static void nvme_pci_disable(struct nvme_dev *dev) static void nvme_pci_disable(struct nvme_dev *dev)
@ -1924,7 +1929,7 @@ static int nvme_dev_map(struct nvme_dev *dev)
return 0; return 0;
release: release:
pci_release_regions(pdev); pci_release_selected_regions(pdev, bars);
return -ENODEV; return -ENODEV;
} }