[PATCH] NOMMU: don't try and give NULL to fput()

Don't try and give NULL to fput() in the error handling in do_mmap_pgoff()
as it'll cause an oops.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/mm/nommu.c b/mm/nommu.c
index 564540662192..365019599df8 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -948,7 +948,8 @@ unsigned long do_mmap_pgoff(struct file *file,
         up_write(&nommu_vma_sem);
         kfree(vml);
         if (vma) {
-                fput(vma->vm_file);
+                if (vma->vm_file)
+                        fput(vma->vm_file);
                 kfree(vma);
         }
         return ret;