Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86 PAT: remove CPA WARN_ON for zero pte
  x86 PAT: return compatible mapping to remap_pfn_range callers
  x86 PAT: change track_pfn_vma_new to take pgprot_t pointer param
  x86 PAT: consolidate old memtype new memtype check into a function
  x86 PAT: remove PFNMAP type on track_pfn_vma_new() error

1 files changed, 6 insertions, 4 deletions

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index e89d24815f26..4cf30dee8161 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -555,10 +555,12 @@ repeat:
         if (!pte_val(old_pte)) {
                 if (!primary)
                         return 0;
-                WARN(1, KERN_WARNING "CPA: called for zero pte. "
-                       "vaddr = %lx cpa->vaddr = %lx\n", address,
-                       *cpa->vaddr);
-                return -EINVAL;
+
+                /*
+                 *  Special error value returned, indicating that the mapping
+                 * did not exist at this address.
+                 */
+                return -EFAULT;
         }
 
         if (level == PG_LEVEL_4K) {