1 files changed, 2 insertions, 1 deletions

diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 55b043a5918a..a534d52a57bd 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -130,7 +130,8 @@ void __init bootmem_init(void)
 
         /* Find an area to use for the bootmem bitmap. */
 
-        bootmap_size = bootmem_bootmap_pages(max_low_pfn) << PAGE_SHIFT;
+        bootmap_size = bootmem_bootmap_pages(max_low_pfn - min_low_pfn);
+        bootmap_size <<= PAGE_SHIFT;
         bootmap_start = ~0;
 
         for (i=0; i<sysmem.nr_banks; i++)