mm-highmem-off-by-one-fix.patch

Subject: mm-highmem-off-by-one-fix.patch
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 25 Jan 2013 16:39:21 +0100

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 mm/highmem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-stable/mm/highmem.c
===================================================================
--- linux-stable.orig/mm/highmem.c
+++ linux-stable/mm/highmem.c
@@ -98,7 +98,7 @@ struct page *kmap_to_page(void *vaddr)
 {
 	unsigned long addr = (unsigned long)vaddr;
 
-	if (addr >= PKMAP_ADDR(0) && addr <= PKMAP_ADDR(LAST_PKMAP)) {
+	if (addr >= PKMAP_ADDR(0) && addr < PKMAP_ADDR(LAST_PKMAP)) {
 		int i = (addr - PKMAP_ADDR(0)) >> PAGE_SHIFT;
 		return pte_page(pkmap_page_table[i]);
 	}