IS_ERR_VALUE       58 arch/x86/include/asm/syscall.h 	return IS_ERR_VALUE(error) ? error : 0;
IS_ERR_VALUE       35 include/linux/err.h 	return IS_ERR_VALUE((unsigned long)ptr);
IS_ERR_VALUE       40 include/linux/err.h 	return !ptr || IS_ERR_VALUE((unsigned long)ptr);
IS_ERR_VALUE      228 include/linux/ptrace.h #define is_syscall_success(regs) (!IS_ERR_VALUE((unsigned long)(regs_return_value(regs))))