struct device_node* bk_node = find_devices("backlight");
if (bk_node) {
- char *prop = get_property(bk_node, "backlight-control", NULL);
+ const char *prop = get_property(bk_node,
+ "backlight-control", NULL);
if (prop && strncmp(prop, type, strlen(type)) == 0)
return 1;
}