int s3cfb_extdsp_release(struct fb_info *fb, int user)
{
	struct s3cfb_extdsp_window *win = fb->par;
	struct s3cfb_extdsp_global *fbdev = get_extdsp_global(0);
	int i;

	printk("[VFB] %s\n", __func__);

	s3cfb_extdsp_release_window(fb);

	mutex_lock(&fbdev->lock);
	atomic_dec(&win->in_use);
	mutex_unlock(&fbdev->lock);

	for (i = 0; i < CONFIG_FB_S5P_EXTDSP_NR_BUFFERS; i++) {
		if (fbdev->buf_list[i].dma_buf) {
#if 0
			dma_buf_put(fbdev->buf_list[i].dma_buf);
			fbdev->buf_list[i].dma_buf = NULL;
			fbdev->buf_list[i].dma_buf_uv = NULL;
#endif
			printk("fbdev->buf_list[%d].dma_buf: %p\n", i, fbdev->buf_list[i].dma_buf);
		}
	}

	return 0;
}
int s3cfb_extdsp_release(struct fb_info *fb, int user)
{
	struct s3cfb_extdsp_window *win = fb->par;
	struct s3cfb_extdsp_global *fbdev = get_extdsp_global(0);

	s3cfb_extdsp_release_window(fb);

	mutex_lock(&fbdev->lock);
	atomic_dec(&win->in_use);
	mutex_unlock(&fbdev->lock);

	return 0;
}