3.2.91-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: T Makphaibulchoke <[email protected]> commit 73e8f3d7e2cb23614d5115703d76d8e54764b641 upstream. Fixing an off-by-one error in devmem_is_allowed(), which allows accesses to physical addresses 0x100000-0x100fff, an extra page past 1MB. Signed-off-by: T Makphaibulchoke <[email protected]> Acked-by: H. Peter Anvin <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- arch/x86/mm/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -326,7 +326,7 @@ unsigned long __init_refok init_memory_m */ int devmem_is_allowed(unsigned long pagenr) { - if (pagenr <= 256) + if (pagenr < 256) return 1; if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) return 0;
