nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group

[linux-2.6-microblaze.git] / mm / gup.c

diff --git a/mm/gup.c b/mm/gup.c
index 42b8b1f..b947179 100644 (file)
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1558,9 +1558,12 @@ long faultin_vma_page_range(struct vm_area_struct *vma, unsigned long start,
                gup_flags |= FOLL_WRITE;
 
        /*
-        * See check_vma_flags(): Will return -EFAULT on incompatible mappings
-        * or with insufficient permissions.
+        * We want to report -EINVAL instead of -EFAULT for any permission
+        * problems or incompatible mappings.
         */
+       if (check_vma_flags(vma, gup_flags))
+               return -EINVAL;
+
        return __get_user_pages(mm, start, nr_pages, gup_flags,
                                NULL, NULL, locked);
 }