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Subject[PATCH] ioremap: fix iounmap numpages
Hi,
The second parameter of change_page_attr in iounmap is wrong, it should be (p->size - 1) >> PAGE_SHIFT

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
---

diff -upr linux/arch/i386/mm/ioremap.c linux.new/arch/i386/mm/ioremap.c
--- linux/arch/i386/mm/ioremap.c 2007-06-29 16:48:40.000000000 +0000
+++ linux.new/arch/i386/mm/ioremap.c 2007-06-29 16:50:09.000000000 +0000
@@ -196,7 +196,7 @@ void iounmap(volatile void __iomem *addr
/* Reset the direct mapping. Can block */
if ((p->flags >> 20) && p->phys_addr < virt_to_phys(high_memory) - 1) {
change_page_attr(virt_to_page(__va(p->phys_addr)),
- p->size >> PAGE_SHIFT,
+ (p->size - 1) >> PAGE_SHIFT,
PAGE_KERNEL);
global_flush_tlb();
}
Regards
dave
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