diff options
| -rw-r--r-- | drivers/pci/iov.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 852424cf2ae1..f34173c70b32 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -668,9 +668,12 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) nres = 0; for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) { int idx = pci_resource_num_from_vf_bar(i); + resource_size_t vf_bar_sz = pci_iov_resource_size(dev, idx); bars |= (1 << idx); res = &dev->resource[idx]; + if (vf_bar_sz * nr_virtfn > resource_size(res)) + continue; if (res->parent) nres++; } |