1*328bafc9SJiri Olsa /* SPDX-License-Identifier: GPL-2.0 */
2*328bafc9SJiri Olsa #ifndef __ERR_H__
3*328bafc9SJiri Olsa #define __ERR_H__
4*328bafc9SJiri Olsa 
5*328bafc9SJiri Olsa #define MAX_ERRNO 4095
6*328bafc9SJiri Olsa #define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO
7*328bafc9SJiri Olsa 
IS_ERR_OR_NULL(const void * ptr)8*328bafc9SJiri Olsa static inline int IS_ERR_OR_NULL(const void *ptr)
9*328bafc9SJiri Olsa {
10*328bafc9SJiri Olsa 	return !ptr || IS_ERR_VALUE((unsigned long)ptr);
11*328bafc9SJiri Olsa }
12*328bafc9SJiri Olsa 
PTR_ERR(const void * ptr)13*328bafc9SJiri Olsa static inline long PTR_ERR(const void *ptr)
14*328bafc9SJiri Olsa {
15*328bafc9SJiri Olsa 	return (long) ptr;
16*328bafc9SJiri Olsa }
17*328bafc9SJiri Olsa 
18*328bafc9SJiri Olsa #endif /* __ERR_H__ */
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