Removed #ifdef'ed out code together with the comment explaining why it was

#ifdef'ed out.
Fixed typo.
Added comment to a changed that's been committed with one of the previous
    commits.

hw/xfree86/os-support/bus/Pci.c

@@ -956,6 +956,11 @@ xf86scanpci(int flags)
     PCITAG       tag;
     static Bool  done = FALSE;
 
+    /*
+     * if we haven't found PCI devices checking for pci_devp may
+     * result in an endless recursion if platform/OS specific PCI
+     * bus probing code calls this function from with in it.
+     */
     if (done || pci_devp[0])
 	return pci_devp;