diff options
Diffstat (limited to 'drivers/vfio/pci/vfio_pci.c')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 706de3ef94bb..5023e23db3bc 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -807,6 +807,7 @@ static long vfio_pci_ioctl(void *device_data, struct vfio_device_info info; struct vfio_info_cap caps = { .buf = NULL, .size = 0 }; unsigned long capsz; + int ret; minsz = offsetofend(struct vfio_device_info, num_irqs); @@ -832,13 +833,10 @@ static long vfio_pci_ioctl(void *device_data, info.num_regions = VFIO_PCI_NUM_REGIONS + vdev->num_regions; info.num_irqs = VFIO_PCI_NUM_IRQS; - if (IS_ENABLED(CONFIG_VFIO_PCI_ZDEV)) { - int ret = vfio_pci_info_zdev_add_caps(vdev, &caps); - - if (ret && ret != -ENODEV) { - pci_warn(vdev->pdev, "Failed to setup zPCI info capabilities\n"); - return ret; - } + ret = vfio_pci_info_zdev_add_caps(vdev, &caps); + if (ret && ret != -ENODEV) { + pci_warn(vdev->pdev, "Failed to setup zPCI info capabilities\n"); + return ret; } if (caps.size) { @@ -1658,6 +1656,8 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma) index = vma->vm_pgoff >> (VFIO_PCI_OFFSET_SHIFT - PAGE_SHIFT); + if (index >= VFIO_PCI_NUM_REGIONS + vdev->num_regions) + return -EINVAL; if (vma->vm_end < vma->vm_start) return -EINVAL; if ((vma->vm_flags & VM_SHARED) == 0) @@ -1666,7 +1666,7 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma) int regnum = index - VFIO_PCI_NUM_REGIONS; struct vfio_pci_region *region = vdev->region + regnum; - if (region && region->ops && region->ops->mmap && + if (region->ops && region->ops->mmap && (region->flags & VFIO_REGION_INFO_FLAG_MMAP)) return region->ops->mmap(vdev, region, vma); return -EINVAL; |