最近学习Linux和rk3288，在编写hello world驱动时编译内核报错，以下是报错信息：
cc1: some warnings being treated as errors
scripts/Makefile.build:308: recipe for target ‘drivers/sai/hello.o’ failed
make[2]: *** [drivers/sai/hello.o] Error 1
scripts/Makefile.build:455: recipe for target ‘drivers/sai’ failed
make[1]: *** [drivers/sai] Error 2
Makefile:812: recipe for target ‘drivers’ failed
make: *** [drivers] Error 2
Makefile和Kconfig文件都是根据阿sai版主的教学视频改的，不知道是不是配置错误。请大神指导一下小弟。万分感谢！