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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-03 22:22:05 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-03 22:22:05 +0000 |
| commit | a6d5f9dca42eab3526e2f73aa5b7df2a5fec2c9d (patch) | |
| tree | fa4dc84c729f382ab7aa6c55f1783de25a1b3dc6 /drivers/vfio/pci | |
| parent | f4a6365ae88d38528b4eec717326dab877b515ea (diff) | |
| parent | 7b5372ba04ca1caabed1470d4ec23001cde2eb91 (diff) | |
| download | linux-a6d5f9dca42eab3526e2f73aa5b7df2a5fec2c9d.tar.bz2 | |
Merge tag 'vfio-v5.6-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Fix nvlink error path (Alexey Kardashevskiy)
- Update nvlink and spapr to use mmgrab() (Julia Lawall)
- Update static declaration (Ben Dooks)
- Annotate __iomem to fix sparse warnings (Ben Dooks)
* tag 'vfio-v5.6-rc1' of git://github.com/awilliam/linux-vfio:
vfio: platform: fix __iomem in vfio_platform_amdxgbe.c
vfio/mdev: make create attribute static
vfio/spapr_tce: use mmgrab
vfio: vfio_pci_nvlink2: use mmgrab
vfio/spapr/nvlink2: Skip unpinning pages on error exit
Diffstat (limited to 'drivers/vfio/pci')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_nvlink2.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c index f2983f0f84be..df4d96038cd4 100644 --- a/drivers/vfio/pci/vfio_pci_nvlink2.c +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c @@ -97,8 +97,10 @@ static void vfio_pci_nvgpu_release(struct vfio_pci_device *vdev, /* If there were any mappings at all... */ if (data->mm) { - ret = mm_iommu_put(data->mm, data->mem); - WARN_ON(ret); + if (data->mem) { + ret = mm_iommu_put(data->mm, data->mem); + WARN_ON(ret); + } mmdrop(data->mm); } @@ -159,7 +161,7 @@ static int vfio_pci_nvgpu_mmap(struct vfio_pci_device *vdev, data->useraddr = vma->vm_start; data->mm = current->mm; - atomic_inc(&data->mm->mm_count); + mmgrab(data->mm); ret = (int) mm_iommu_newdev(data->mm, data->useraddr, vma_pages(vma), data->gpu_hpa, &data->mem); |