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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-27 16:03:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-27 16:03:22 -0700 |
| commit | aa00edc1287a693eadc7bc67a3d73555d969b35d (patch) | |
| tree | 6dd91f62751407ea50e64c37f7e8a09bde803134 /include/linux/err.h | |
| parent | mm: remove more IS_ERR_VALUE abuses (diff) | |
| download | linux-dev-aa00edc1287a693eadc7bc67a3d73555d969b35d.tar.xz linux-dev-aa00edc1287a693eadc7bc67a3d73555d969b35d.zip | |
make IS_ERR_VALUE() complain about non-pointer-sized arguments
Now that the allmodconfig x86-64 build is clean wrt IS_ERR_VALUE() uses
on integers, add a cast to a pointer and back to the argument, so that
any new mis-uses of IS_ERR_VALUE() will cause warnings like
warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
so that we don't re-introduce any bogus uses.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/err.h')
| -rw-r--r-- | include/linux/err.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/err.h b/include/linux/err.h index 56762ab41713..1e3558845e4c 100644 --- a/include/linux/err.h +++ b/include/linux/err.h @@ -18,7 +18,7 @@ #ifndef __ASSEMBLY__ -#define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) +#define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) static inline void * __must_check ERR_PTR(long error) { |