x86: early_ioremap_reset fix

This patch fixes a bug of early_ioremap_reset.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 43b5e9f..bfd7b8b 100644 (file)
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -247,7 +247,7 @@ void __init early_ioremap_reset(void)
        unsigned long *pte, phys, addr;
 
        after_paging_init = 1;
-       for (idx = FIX_BTMAP_BEGIN; idx <= FIX_BTMAP_END; idx--) {
+       for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) {
                addr = fix_to_virt(idx);
                pte = early_ioremap_pte(addr);
                if (!*pte & _PAGE_PRESENT) {