---

yaml --- r: 80503 b: refs/heads/master c: 1c17f4d h: refs/heads/master i: 80501: 37d7c31 80499: 0f38bd9 80495: 3ff01cc v: v3
git-mirror · Jan 30, 2008 · 2813fc9 · 2813fc9
1 parent bc92014
commit 2813fc9
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d2e626f45cc450c00f5f98a89b8b4c4ac3c9bf5f
+refs/heads/master: 1c17f4d615f34a4ecfcf9132d643126b226f5e79
diff --git a/trunk/arch/x86/mm/ioremap_64.c b/trunk/arch/x86/mm/ioremap_64.c
@@ -41,7 +41,14 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 	if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
 		unsigned long npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 		unsigned long vaddr = (unsigned long) __va(phys_addr);
+		int level;
 
+		/*
+		 * If there is no identity map for this address,
+		 * change_page_attr_addr is unnecessary
+		 */
+		if (!lookup_address(vaddr, &level))
+			return err;
 		/*
  		 * Must use a address here and not struct page because the phys addr
 		 * can be a in hole between nodes and not have an memmap entry.