diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/vpd.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c index a1d31c5d1864..cbf784ed5216 100644 --- a/drivers/pci/vpd.c +++ b/drivers/pci/vpd.c @@ -71,10 +71,14 @@ static size_t pci_vpd_size(struct pci_dev *dev, size_t old_size) size_t off = 0; unsigned char header[1+2]; /* 1 byte tag, 2 bytes length */ - while (off < old_size && - pci_read_vpd(dev, off, 1, header) == 1) { + while (off < old_size && pci_read_vpd(dev, off, 1, header) == 1) { unsigned char tag; + if (!header[0] && !off) { + pci_info(dev, "Invalid VPD tag 00, assume missing optional VPD EPROM\n"); + return 0; + } + if (header[0] & PCI_VPD_LRDT) { /* Large Resource Data Type Tag */ tag = pci_vpd_lrdt_tag(header); |