[media] media: vb2: fix userptr VMA release seq

Align vb2 user pointer VMA release sequence with munmap.
Do vm_ops->vm_close before release file.

Signed-off-by: Yu Tang <ytang5@marvell.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/videobuf2-memops.c b/drivers/media/video/videobuf2-memops.c
index 569eeb3..71a7a78 100644
--- a/drivers/media/video/videobuf2-memops.c
+++ b/drivers/media/video/videobuf2-memops.c
@@ -68,12 +68,12 @@
 	if (!vma)
 		return;
 
-	if (vma->vm_file)
-		fput(vma->vm_file);
-
 	if (vma->vm_ops && vma->vm_ops->close)
 		vma->vm_ops->close(vma);
 
+	if (vma->vm_file)
+		fput(vma->vm_file);
+
 	kfree(vma);
 }
 EXPORT_SYMBOL_GPL(vb2_put_vma);