diff options
Diffstat (limited to 'arch/x86/pci/direct.c')
| -rw-r--r-- | arch/x86/pci/direct.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/pci/direct.c b/arch/x86/pci/direct.c index e6fd8473fb7..4f2c70439d7 100644 --- a/arch/x86/pci/direct.c +++ b/arch/x86/pci/direct.c @@ -22,7 +22,7 @@ static int pci_conf1_read(unsigned int seg, unsigned int bus, { unsigned long flags; - if ((bus > 255) || (devfn > 255) || (reg > 4095)) { + if (seg || (bus > 255) || (devfn > 255) || (reg > 4095)) { *value = -1; return -EINVAL; } @@ -53,7 +53,7 @@ static int pci_conf1_write(unsigned int seg, unsigned int bus, { unsigned long flags; - if ((bus > 255) || (devfn > 255) || (reg > 4095)) + if (seg || (bus > 255) || (devfn > 255) || (reg > 4095)) return -EINVAL; raw_spin_lock_irqsave(&pci_config_lock, flags); @@ -97,6 +97,7 @@ static int pci_conf2_read(unsigned int seg, unsigned int bus, unsigned long flags; int dev, fn; + WARN_ON(seg); if ((bus > 255) || (devfn > 255) || (reg > 255)) { *value = -1; return -EINVAL; @@ -138,6 +139,7 @@ static int pci_conf2_write(unsigned int seg, unsigned int bus, unsigned long flags; int dev, fn; + WARN_ON(seg); if ((bus > 255) || (devfn > 255) || (reg > 255)) return -EINVAL; |