/* SPDX-License-Identifier: GPL-2.0 */ | |
#ifndef __ERR_H__ | |
#define __ERR_H__ | |
#define MAX_ERRNO 4095 | |
#define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO | |
static inline int IS_ERR_OR_NULL(const void *ptr) | |
{ | |
return !ptr || IS_ERR_VALUE((unsigned long)ptr); | |
} | |
static inline long PTR_ERR(const void *ptr) | |
{ | |
return (long) ptr; | |
} | |
#endif /* __ERR_H__ */ |