162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#ifndef __ERR_H__ 362306a36Sopenharmony_ci#define __ERR_H__ 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci#define MAX_ERRNO 4095 662306a36Sopenharmony_ci#define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO 762306a36Sopenharmony_ci 862306a36Sopenharmony_cistatic inline int IS_ERR_OR_NULL(const void *ptr) 962306a36Sopenharmony_ci{ 1062306a36Sopenharmony_ci return !ptr || IS_ERR_VALUE((unsigned long)ptr); 1162306a36Sopenharmony_ci} 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_cistatic inline long PTR_ERR(const void *ptr) 1462306a36Sopenharmony_ci{ 1562306a36Sopenharmony_ci return (long) ptr; 1662306a36Sopenharmony_ci} 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci#endif /* __ERR_H__ */ 19