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>

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>
Ingo Molnar
1 parent 2cca775bae
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
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)) {
...	...	@@ -542,7 +542,7 @@
542	542	repeat:
543	543	kpte = lookup_address(address, &level);
544	544	if (!kpte)
545		- return primary ? -EINVAL : 0;
	545	+ return 0;
546	546
547	547	old_pte = *kpte;
548	548	if (!pte_val(old_pte)) {