20 	int fd, ret, saved_errno;  in main()  local
24 	ret = unshare(CLONE_NEWNS);  in main()
25 	if (ret < 0) {  in main()
31 	ret = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);  in main()
32 	if (ret < 0) {  in main()
38 	ret = mkdir("/dev/binderfs", 0755);  in main()
39 	if (ret < 0 && errno != EEXIST) {  in main()
45 	ret = mount(NULL, "/dev/binderfs", "binder", 0, 0);  in main()
46 	if (ret < 0) {  in main()
61 	ret = ioctl(fd, BINDER_CTL_ADD, &device);  in main()
65 	if (ret < 0) {  in main()
74 	ret = unlink("/dev/binderfs/my-binder");  in main()
75 	if (ret < 0) {  in main()