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Diffstat (limited to 'arch/x86/pci/direct.c')
-rw-r--r--arch/x86/pci/direct.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/pci/direct.c b/arch/x86/pci/direct.c
index e6fd8473fb7b..4f2c70439d7f 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;