--- drivers/pci/pci.c.orig	2006-07-15 23:53:08.000000000 +0200
+++ drivers/pci/pci.c	2006-07-21 00:51:07.000000000 +0200
@@ -477,7 +477,7 @@
 	 */
 	for (i = 15; i >= 0; i--) {
 		pci_read_config_dword(dev, i * 4, &val);
-		if (val != dev->saved_config_space[i]) {
+		if (val != dev->saved_config_space[i] && dev->saved_config_space[i] != 0xffffffff) {
 			printk(KERN_DEBUG "PM: Writing back config space on "
 				"device %s at offset %x (was %x, writing %x)\n",
 				pci_name(dev), i,