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31 lines
716 B
C
31 lines
716 B
C
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#ifndef __BACKPORT_LINUX_ERR_H
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#define __BACKPORT_LINUX_ERR_H
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#include_next <linux/err.h>
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#include <linux/version.h>
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
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static inline int __must_check PTR_RET(const void *ptr)
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{
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if (IS_ERR(ptr))
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return PTR_ERR(ptr);
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else
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return 0;
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
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/* mask IS_ERR_OR_NULL as debian squeeze also backports this */
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#define IS_ERR_OR_NULL LINUX_BACKPORT(IS_ERR_OR_NULL)
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static inline long __must_check IS_ERR_OR_NULL(const void *ptr)
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{
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return !ptr || IS_ERR_VALUE((unsigned long)ptr);
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0)
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#define PTR_ERR_OR_ZERO(p) PTR_RET(p)
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#endif
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#endif /* __BACKPORT_LINUX_ERR_H */
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