1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index d41d3a9036ca..3ba6e0608c55 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -611,7 +611,7 @@ void __init early_iounmap(void __iomem *addr, unsigned long size)
                 return;
         }
         offset = virt_addr & ~PAGE_MASK;
-        nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
+        nrpages = PAGE_ALIGN(offset + size) >> PAGE_SHIFT;
 
         idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*slot;
         while (nrpages > 0) {