[PATCH] i386/x86-64: Return defined error value for bad PCI config space accesses

[safe/jmp/linux-2.6] / arch / i386 / pci / direct.c

diff --git a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
index 4457cf3..0659ced 100644 (file)
--- a/arch/i386/pci/direct.c
+++ b/arch/i386/pci/direct.c
@@ -19,8 +19,10 @@ int pci_conf1_read(unsigned int seg, unsigned int bus,
 {
        unsigned long flags;
 
-       if (!value || (bus > 255) || (devfn > 255) || (reg > 255))
+       if (!value || (bus > 255) || (devfn > 255) || (reg > 255)) {
+               *value = -1;
                return -EINVAL;
+       }
 
        spin_lock_irqsave(&pci_config_lock, flags);