| /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ | |
| #ifndef __LINUX_ERR_H | |
| #define __LINUX_ERR_H | |
| #include <linux/types.h> | |
| #include <asm/errno.h> | |
| #define MAX_ERRNO 4095 | |
| #define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO) | |
| static inline void * ERR_PTR(long error_) | |
| { | |
| return (void *) error_; | |
| } | |
| static inline long PTR_ERR(const void *ptr) | |
| { | |
| return (long) ptr; | |
| } | |
| static inline bool IS_ERR(const void *ptr) | |
| { | |
| return IS_ERR_VALUE((unsigned long)ptr); | |
| } | |
| static inline bool IS_ERR_OR_NULL(const void *ptr) | |
| { | |
| return (!ptr) || IS_ERR_VALUE((unsigned long)ptr); | |
| } | |
| #endif |