Merge branch 'akpm-incoming-1'

* akpm-incoming-1: (176 commits)
  scripts/checkpatch.pl: add check for declaration of pci_device_id
  scripts/checkpatch.pl: add warnings for static char that could be static const char
  checkpatch: version 0.31
  checkpatch: statement/block context analyser should look at sanitised lines
  checkpatch: handle EXPORT_SYMBOL for DEVICE_ATTR and similar
  checkpatch: clean up structure definition macro handline
  checkpatch: update copyright dates
  checkpatch: Add additional attribute #defines
  checkpatch: check for incorrect permissions
  checkpatch: ensure kconfig help checks only apply when we are adding help
  checkpatch: simplify and consolidate "missing space after" checks
  checkpatch: add check for space after struct, union, and enum
  checkpatch: returning errno typically should be negative
  checkpatch: handle casts better fixing false categorisation of : as binary
  checkpatch: ensure we do not collapse bracketed sections into constants
  checkpatch: suggest cleanpatch and cleanfile when appropriate
  checkpatch: types may sit on a line on their own
  checkpatch: fix regressions in "fix handling of leading spaces"
  div64_u64(): improve precision on 32bit platforms
  lib/parser: cleanup match_number()
  ...

1 files changed, 12 insertions, 3 deletions

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index f969da5dd8a2..81a127643aea 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -924,15 +924,21 @@ static int migrate_to_node(struct mm_struct *mm, int source, int dest,
         nodemask_t nmask;
         LIST_HEAD(pagelist);
         int err = 0;
+        struct vm_area_struct *vma;
 
         nodes_clear(nmask);
         node_set(source, nmask);
 
-        check_range(mm, mm->mmap->vm_start, mm->task_size, &nmask,
+        vma = check_range(mm, mm->mmap->vm_start, mm->task_size, &nmask,
                         flags | MPOL_MF_DISCONTIG_OK, &pagelist);
+        if (IS_ERR(vma))
+                return PTR_ERR(vma);
 
-        if (!list_empty(&pagelist))
+        if (!list_empty(&pagelist)) {
                 err = migrate_pages(&pagelist, new_node_page, dest, 0);
+                if (err)
+                        putback_lru_pages(&pagelist);
+        }
 
         return err;
 }
@@ -1147,9 +1153,12 @@ static long do_mbind(unsigned long start, unsigned long len,
 
                 err = mbind_range(mm, start, end, new);
 
-                if (!list_empty(&pagelist))
+                if (!list_empty(&pagelist)) {
                         nr_failed = migrate_pages(&pagelist, new_vma_page,
                                                 (unsigned long)vma, 0);
+                        if (nr_failed)
+                                putback_lru_pages(&pagelist);
+                }
 
                 if (!err && nr_failed && (flags & MPOL_MF_STRICT))
                         err = -EIO;