diff options
| -rw-r--r-- | arch/x86/pci/mmconfig-shared.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index b36c10e86505..459e95782bb1 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -786,6 +786,10 @@ int pci_mmconfig_insert(struct device *dev, u16 seg, u8 start, u8 end, return -EEXIST; } + /* + * Don't move earlier; we must return -EEXIST, not -EINVAL, if + * pci_mmconfig_lookup() finds something + */ if (!addr) { mutex_unlock(&pci_mmcfg_lock); return -EINVAL; |