nobody else will see that struct file after return from ->release()
anyway; just leave ->f_op as is and let __fput() do that fops_put().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
        /* TODO */
        dvbdev->users--;
        if (dvbdev->users == 1 && dmxdev->exit == 1) {
-               fops_put(file->f_op);
-               file->f_op = NULL;
                mutex_unlock(&dmxdev->mutex);
                wake_up(&dvbdev->wait_queue);
        } else
        mutex_lock(&dmxdev->mutex);
        dmxdev->dvbdev->users--;
        if(dmxdev->dvbdev->users==1 && dmxdev->exit==1) {
-               fops_put(file->f_op);
-               file->f_op = NULL;
                mutex_unlock(&dmxdev->mutex);
                wake_up(&dmxdev->dvbdev->wait_queue);
        } else