static long fb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
	struct fb_info *info = file_fb_info(file);

	if (!info)
		return -ENODEV;
	return do_fb_ioctl(info, cmd, arg);
}
static long fb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
	struct fb_info *info = file_fb_info(file);

	if (!info)
		return -ENODEV;
	return do_fb_ioctl(info, cmd, arg);
}