diff options
| author | Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> | 2019-10-22 21:29:47 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-11-07 18:01:13 -0500 |
| commit | 8c59ca93b839261863f0db2295a2b6b4dd4f175e (patch) | |
| tree | 6ff0c0ed9e6e72d041506d7507c1c842e6439b29 /include/linux | |
| parent | 93db2b83ed515fd5700b6c5abb0fba612ef2cdcb (diff) | |
linux err: make ERR_PTR/PTR_ERR architecture specific
This patch changes ERR_PTR/PTR_ERR to use CONFIG_ERR_PTR_OFFSET to map
errno values into a pointer region that cannot contain valid pointers.
IS_ERR and IS_ERR_OR_NULL have to be converted to use PTR_ERR, too,
for this to work.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/err.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/err.h b/include/linux/err.h index 22e5756edd..5ede82432d 100644 --- a/include/linux/err.h +++ b/include/linux/err.h @@ -23,22 +23,22 @@ static inline void *ERR_PTR(long error) { - return (void *) error; + return (void *)(CONFIG_ERR_PTR_OFFSET + error); } static inline long PTR_ERR(const void *ptr) { - return (long) ptr; + return ((long)ptr - CONFIG_ERR_PTR_OFFSET); } static inline long IS_ERR(const void *ptr) { - return IS_ERR_VALUE((unsigned long)ptr); + return IS_ERR_VALUE((unsigned long)PTR_ERR(ptr)); } static inline bool IS_ERR_OR_NULL(const void *ptr) { - return !ptr || IS_ERR_VALUE((unsigned long)ptr); + return !ptr || IS_ERR_VALUE((unsigned long)PTR_ERR(ptr)); } /** |