static int au1200fb_setup(struct au1200fb_platdata *pd)
{
	char *options = NULL;
	char *this_opt, *endptr;
	int num_panels = ARRAY_SIZE(known_lcd_panels);
	int panel_idx = -1;

	fb_get_options(DRIVER_NAME, &options);

	if (!options)
		goto out;

	while ((this_opt = strsep(&options, ",")) != NULL) {
		/* Panel option - can be panel name,
		 * "bs" for board-switch, or number/index */
		if (!strncmp(this_opt, "panel:", 6)) {
			int i;
			long int li;
			char *endptr;
			this_opt += 6;
			/* First check for index, which allows
			 * to short circuit this mess */
			li = simple_strtol(this_opt, &endptr, 0);
			if (*endptr == '\0')
				panel_idx = (int)li;
			else if (strcmp(this_opt, "bs") == 0)
				panel_idx = pd->panel_index();
			else {
				for (i = 0; i < num_panels; i++) {
					if (!strcmp(this_opt,
						    known_lcd_panels[i].name)) {
						panel_idx = i;
						break;
					}
				}
			}
			if ((panel_idx < 0) || (panel_idx >= num_panels))
				print_warn("Panel %s not supported!", this_opt);
			else
				panel_index = panel_idx;

		} else if (strncmp(this_opt, "nohwcursor", 10) == 0)
			nohwcursor = 1;
		else if (strncmp(this_opt, "devices:", 8) == 0) {
			this_opt += 8;
			device_count = simple_strtol(this_opt, &endptr, 0);
			if ((device_count < 0) ||
			    (device_count > MAX_DEVICE_COUNT))
				device_count = MAX_DEVICE_COUNT;
		} else if (strncmp(this_opt, "wincfg:", 7) == 0) {
			this_opt += 7;
			window_index = simple_strtol(this_opt, &endptr, 0);
			if ((window_index < 0) ||
			    (window_index >= ARRAY_SIZE(windows)))
				window_index = DEFAULT_WINDOW_INDEX;
		} else if (strncmp(this_opt, "off", 3) == 0)
			return 1;
		else
			print_warn("Unsupported option \"%s\"", this_opt);
	}

out:
	return 0;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.