--- /usr/tmp/TmpDir.32705-0/linux/linux/arch/ia64/sn/io/sn2/module.c_1.17	Fri Jan 16 16:02:08 2004
+++ linux/linux/arch/ia64/sn/io/sn2/module.c	Fri Jan 16 16:01:51 2004
@@ -57,7 +57,7 @@
     int			i;
 
     for (i = 0; i < nummodules; i++)
-	if (modules[i]->id == id) {
+	if (modules[i] && modules[i]->id == id) {
 	    DPRINTF("module_lookup: found m=0x%p\n", modules[i]);
 	    return modules[i];
 	}