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Last change
on this file since 695 was 679, checked in by David Azarewicz, 4 years ago |
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Merge changes from Paul's uniaud32next branch.
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File size:
615 bytes
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| 1 | /* $Id: err.h,v 1.1.1.1 2003/07/02 13:57:00 eleph Exp $ */
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| 2 |
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| 3 | #ifndef _LINUX_ERR_H
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| 4 | #define _LINUX_ERR_H
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| 5 | #include <linux/types.h>
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| 6 |
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| 7 | #define IS_ERR_VALUE(x) ((x) > (unsigned long)-1000L)
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| 8 |
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| 9 | static inline void *ERR_PTR(long error)
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| 10 | {
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| 11 | return (void *) error;
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| 12 | }
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| 13 |
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| 14 | static inline long PTR_ERR(const void *ptr)
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| 15 | {
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| 16 | return (long) ptr;
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| 17 | }
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| 18 |
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| 19 | static inline long IS_ERR(const void *ptr)
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| 20 | {
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| 21 | return IS_ERR_VALUE((unsigned long)ptr);
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| 22 | }
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| 23 |
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| 24 | static inline int PTR_RET(const void *ptr)
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| 25 | {
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| 26 | if (IS_ERR(ptr))
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| 27 | return PTR_ERR(ptr);
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| 28 | else
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| 29 | return 0;
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| 30 | }
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| 31 |
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| 32 | #define PTR_ERR_OR_ZERO(p) PTR_RET(p)
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| 33 | #endif /* _LINUX_ERR_H */
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