made comedi_mmap_v22() mark subdevice as mmapped

diff --git a/comedi/comedi_fops.c b/comedi/comedi_fops.c
index 1a527b1e316202ea7402b788e6beb69d8b222a42..492567a43039869c05c9620ad5e93e48b32ca9f0 100644 (file)
--- a/comedi/comedi_fops.c
+++ b/comedi/comedi_fops.c
@@ -1250,7 +1250,7 @@ static int do_cancel(comedi_device *dev,comedi_subdevice *s)
 
    issues:
       what happens when the underlying buffer gets changed?
-      
+
  */
 static int comedi_mmap_v22(struct file * file, struct vm_area_struct *vma)
 {
@@ -1275,13 +1275,14 @@ static int comedi_mmap_v22(struct file * file, struct vm_area_struct *vma)
        }
 
        rvmmap(s->prealloc_buf,s->prealloc_bufsz,vma);
-       
+
        //vma->vm_file = file;
        //vma->vm_ops = &comedi_vm_ops;
        //file_atomic_inc(&file->f_count);
 
-       /* XXX mark subdev as mapped */
-       
+       /* mark subdev as mapped */
+       s->subdev_flags |= SDF_MMAPPED;
+
        return 0;
 }
 #endif