x86 PAT: fix mmap() of holes
do not return a -EINVAL when mmap()-ing PCI holes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 7d9517a..f7823a1 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -542,7 +542,7 @@
repeat:
kpte = lookup_address(address, &level);
if (!kpte)
- return primary ? -EINVAL : 0;
+ return 0;
old_pte = *kpte;
if (!pte_val(old_pte)) {