PERFORCE change 116371 for review

[Oleksandr Tymoshenko]

http://perforce.freebsd.org/chv.cgi?CH=116371

Change 116371 by gonzo at gonzo_jeeves on 2007/03/22 22:27:56

	o Handle a case of unallocated segmap in pmap_protect.

Affected files ...

.. //depot/projects/mips2/src/sys/mips/mips/pmap.c#23 edit

Differences ...

==== //depot/projects/mips2/src/sys/mips/mips/pmap.c#23 (text+ko) ====

@@ -1140,7 +1140,7 @@
 		 * If pte is invalid, skip this page
 		 */
 		pte = pmap_pte(pmap, sva);
-		if (!pte_valid(pte)) {
+		if ((pte == NULL) || !pte_valid(pte)) {
 			sva += PAGE_SIZE;
 			continue;
 		}