diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_configfs.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_configfs.c b/drivers/gpu/drm/xe/xe_configfs.c index e9b46a2d0019..f5ce48a0adc8 100644 --- a/drivers/gpu/drm/xe/xe_configfs.c +++ b/drivers/gpu/drm/xe/xe_configfs.c @@ -259,12 +259,19 @@ static struct config_group *xe_config_make_device_group(struct config_group *gro unsigned int domain, bus, slot, function; struct xe_config_device *dev; struct pci_dev *pdev; + char canonical[16]; int ret; - ret = sscanf(name, "%04x:%02x:%02x.%x", &domain, &bus, &slot, &function); + ret = sscanf(name, "%x:%x:%x.%x", &domain, &bus, &slot, &function); if (ret != 4) return ERR_PTR(-EINVAL); + ret = scnprintf(canonical, sizeof(canonical), "%04x:%02x:%02x.%d", domain, bus, + PCI_SLOT(PCI_DEVFN(slot, function)), + PCI_FUNC(PCI_DEVFN(slot, function))); + if (ret != 12 || strcmp(name, canonical)) + return ERR_PTR(-EINVAL); + pdev = pci_get_domain_bus_and_slot(domain, bus, PCI_DEVFN(slot, function)); if (!pdev) return ERR_PTR(-ENODEV); |