Security: remove security_file_mmap hook sparse-warnings (NULL as 0).

Fixing:
  CHECK   mm/mmap.c
mm/mmap.c:1623:29: warning: Using plain integer as NULL pointer
mm/mmap.c:1623:29: warning: Using plain integer as NULL pointer
mm/mmap.c:1944:29: warning: Using plain integer as NULL pointer

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/mmap.c b/mm/mmap.c
index 15678aa6ec73..bfa389fc6ded 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1620,7 +1620,7 @@ static inline int expand_downwards(struct vm_area_struct *vma,
                 return -ENOMEM;
 
         address &= PAGE_MASK;
-        error = security_file_mmap(0, 0, 0, 0, address, 1);
+        error = security_file_mmap(NULL, 0, 0, 0, address, 1);
         if (error)
                 return error;
 
@@ -1941,7 +1941,7 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
         if (is_hugepage_only_range(mm, addr, len))
                 return -EINVAL;
 
-        error = security_file_mmap(0, 0, 0, 0, addr, 1);
+        error = security_file_mmap(NULL, 0, 0, 0, addr, 1);
         if (error)
                 return error;