[PATCH] Fix error bounds checking for NUMA-Q

Patch from Dave Hansen.

Fix simple bounding error found by some Stanford-checker type thing
to use the proper MAX_MP_BUSSES define instead of a constant.

arch/i386/pci/numa.c

@@ -17,7 +17,7 @@ static int __pci_conf1_mq_read (int seg, int bus, int dev, int fn, int reg, int
 {
 	unsigned long flags;
 
-	if (!value || (bus > 255) || (dev > 31) || (fn > 7) || (reg > 255))
+	if (!value || (bus > MAX_MP_BUSSES) || (dev > 31) || (fn > 7) || (reg > 255))
 		return -EINVAL;
 
 	spin_lock_irqsave(&pci_config_lock, flags);
@@ -45,7 +45,7 @@ static int __pci_conf1_mq_write (int seg, int bus, int dev, int fn, int reg, int
 {
 	unsigned long flags;
 
-	if ((bus > 255) || (dev > 31) || (fn > 7) || (reg > 255)) 
+	if ((bus > MAX_MP_BUSSES) || (dev > 31) || (fn > 7) || (reg > 255)) 
 		return -EINVAL;
 
 	spin_lock_irqsave(&pci_config_lock, flags);