[media] ov7670: check for valid width/height in ov7670_enum_frame_interval

				      struct v4l2_subdev_pad_config *cfg,

				      struct v4l2_subdev_frame_interval_enum *fie)

{

	struct ov7670_info *info = to_state(sd);

	unsigned int n_win_sizes = info->devtype->n_win_sizes;

	int i;

	if (fie->pad)

		return -EINVAL;

	if (fie->index >= ARRAY_SIZE(ov7670_frame_rates))

		return -EINVAL;

	/*

	 * Check if the width/height is valid.

	 *

	 * If a minimum width/height was requested, filter out the capture

	 * windows that fall outside that.

	 */

	for (i = 0; i < n_win_sizes; i++) {

		struct ov7670_win_size *win = &info->devtype->win_sizes[i];

		if (info->min_width && win->width < info->min_width)

			continue;

		if (info->min_height && win->height < info->min_height)

			continue;

		if (fie->width == win->width && fie->height == win->height)

			break;

	}

	if (i == n_win_sizes)

		return -EINVAL;

	fie->interval.numerator = 1;

	fie->interval.denominator = ov7670_frame_rates[fie->index];

	return 0;