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1 | /* SPDX-License-Identifier: GPL-2.0 */ |
---|---|
2 | #ifndef ERR_H |
3 | #define ERR_H |
4 | #define MAX_ERRNO 4095 |
5 | |
6 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) |
7 | |
8 | static inline void * __must_check ERR_PTR(long error) |
9 | { |
10 | return (void *) error; |
11 | } |
12 | |
13 | static inline long __must_check PTR_ERR(const void *ptr) |
14 | { |
15 | return (long) ptr; |
16 | } |
17 | |
18 | static inline long __must_check IS_ERR(const void *ptr) |
19 | { |
20 | return IS_ERR_VALUE((unsigned long)ptr); |
21 | } |
22 | |
23 | static inline long __must_check IS_ERR_OR_NULL(const void *ptr) |
24 | { |
25 | return !ptr || IS_ERR_VALUE((unsigned long)ptr); |
26 | } |
27 | #endif /* ERR_H */ |
28 |
Warning: This file is not a C or C++ file. It does not have highlighting.