394     int retval = mkdir(full_path, 0);  in shell_cmd_mkdir()  local
400     return retval;  in shell_cmd_mkdir()
423     int retval = rmdir(full_path);  in shell_cmd_rmdir()  local
424     if (retval != 0)  in shell_cmd_rmdir()
425         printf("Failed to remove %s, retval=%d\n", full_path, retval);  in shell_cmd_rmdir()
431     return retval;  in shell_cmd_rmdir()
445     int retval = 0;  in shell_cmd_rm()  local
456     retval = rm(full_path);  in shell_cmd_rm()
458     if (retval != 0)  in shell_cmd_rm()
459         printf("Failed to remove %s, retval=%d\n", full_path, retval);  in shell_cmd_rm()
464     return retval;  in shell_cmd_rm()
477     int retval = 0;  in shell_cmd_exec()  local
497             waitpid(pid, &retval, 0);  in shell_cmd_exec()
525     int retval = 0;  in shell_cmd_kill()  local
529         retval = -EINVAL;  in shell_cmd_kill()
532     retval = kill(atoi(argv[1]), SIGKILL);  in shell_cmd_kill()
535     return retval;  in shell_cmd_kill()
552     int retval = 0;  in shell_cmd_free()  local
555         retval = -EINVAL;  in shell_cmd_free()
561     retval = mstat(&mst);  in shell_cmd_free()
562     if (retval != 0)  in shell_cmd_free()
564         printf("Failed: retval=%d", retval);  in shell_cmd_free()
584     return retval;  in shell_cmd_free()