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Fix get_unmapped_area sanity tests

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As noted by Chris Wright, we need to do the full range of tests regardless
of whether MAP_FIXED is set or not, so re-organize get_unmapped_area()
slightly to do the sanity checks unconditionally.
This commit is contained in:
Linus Torvalds 2005-05-19 22:43:37 -07:00
parent 66e60f9251
commit 07ab67c8d0
2 changed files with 34 additions and 29 deletions
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4
include/linux/err.h
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@ -13,6 +13,8 @@
* This should be a per-architecture thing, to allow different
* error and pointer decisions.
*/
#define IS_ERR_VALUE(x) unlikely((x) > (unsigned long)-1000L)
static inline void *ERR_PTR(long error)
{
return (void *) error;
@ -25,7 +27,7 @@ static inline long PTR_ERR(const void *ptr)
static inline long IS_ERR(const void *ptr)
{
return unlikely((unsigned long)ptr > (unsigned long)-1000L);
return IS_ERR_VALUE((unsigned long)ptr);
}
#endif /* _LINUX_ERR_H */