diff options
Diffstat (limited to 'include/linux/err.h')
| -rw-r--r-- | include/linux/err.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/err.h b/include/linux/err.h index ff71d2af5da3..1ab1d44f8d3b 100644 --- a/include/linux/err.h +++ b/include/linux/err.h | |||
| @@ -13,7 +13,11 @@ | |||
| 13 | * This should be a per-architecture thing, to allow different | 13 | * This should be a per-architecture thing, to allow different |
| 14 | * error and pointer decisions. | 14 | * error and pointer decisions. |
| 15 | */ | 15 | */ |
| 16 | #define IS_ERR_VALUE(x) unlikely((x) > (unsigned long)-1000L) | 16 | #define MAX_ERRNO 4095 |
| 17 | |||
| 18 | #ifndef __ASSEMBLY__ | ||
| 19 | |||
| 20 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) | ||
| 17 | 21 | ||
| 18 | static inline void *ERR_PTR(long error) | 22 | static inline void *ERR_PTR(long error) |
| 19 | { | 23 | { |
| @@ -30,4 +34,6 @@ static inline long IS_ERR(const void *ptr) | |||
| 30 | return IS_ERR_VALUE((unsigned long)ptr); | 34 | return IS_ERR_VALUE((unsigned long)ptr); |
| 31 | } | 35 | } |
| 32 | 36 | ||
| 37 | #endif | ||
| 38 | |||
| 33 | #endif /* _LINUX_ERR_H */ | 39 | #endif /* _LINUX_ERR_H */ |
