install_special_mapping skips security_file_mmap check.

[mv-sheeva.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index b179abb1474ae41bff47060b5241045d3b1b12ad..50a4aa0255a0703f83c8667028afe8545d78e09a 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2462,6 +2462,7 @@ int install_special_mapping(struct mm_struct *mm,
                            unsigned long addr, unsigned long len,
                            unsigned long vm_flags, struct page **pages)
 {
+       int ret;
        struct vm_area_struct *vma;
 
        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
@@ -2479,16 +2480,23 @@ int install_special_mapping(struct mm_struct *mm,
        vma->vm_ops = &special_mapping_vmops;
        vma->vm_private_data = pages;
 
-       if (unlikely(insert_vm_struct(mm, vma))) {
-               kmem_cache_free(vm_area_cachep, vma);
-               return -ENOMEM;
-       }
+       ret = security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1);
+       if (ret)
+               goto out;
+
+       ret = insert_vm_struct(mm, vma);
+       if (ret)
+               goto out;
 
        mm->total_vm += len >> PAGE_SHIFT;
 
        perf_event_mmap(vma);
 
        return 0;
+
+out:
+       kmem_cache_free(vm_area_cachep, vma);
+       return ret;
 }
 
 static DEFINE_MUTEX(mm_all_locks_mutex);