| /* 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 |