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| author | Rusty Russell <rusty@rustcorp.com.au> | 2013-07-15 11:19:32 +0930 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2013-07-15 11:25:00 +0930 |
| commit | 6e8b8726ad503214ba66e34aed69aff41de33489 (patch) | |
| tree | 9afb3e333034b444888e32e786c8feac80442680 /include/linux/err.h | |
| parent | ad81f0545ef01ea651886dddac4bef6cec930092 (diff) | |
| download | lwn-6e8b8726ad503214ba66e34aed69aff41de33489.tar.gz lwn-6e8b8726ad503214ba66e34aed69aff41de33489.zip | |
PTR_RET is now PTR_ERR_OR_ZERO
True, it's often used in return statements, but after much bikeshedding
it's probably better to have an explicit name.
(I tried just putting the IS_ERR check inside PTR_ERR itself and gcc
usually generated no more code. But that clashes current expectations
of how PTR_ERR behaves, so having a separate function is better).
Suggested-by: Julia Lawall <julia.lawall@lip6.fr>
Suggested-by: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/err.h')
| -rw-r--r-- | include/linux/err.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/err.h b/include/linux/err.h index 221fcfb676c4..15f92e072450 100644 --- a/include/linux/err.h +++ b/include/linux/err.h @@ -52,7 +52,7 @@ static inline void * __must_check ERR_CAST(__force const void *ptr) return (void *) ptr; } -static inline int __must_check PTR_RET(__force const void *ptr) +static inline int __must_check PTR_ERR_OR_ZERO(__force const void *ptr) { if (IS_ERR(ptr)) return PTR_ERR(ptr); @@ -60,6 +60,9 @@ static inline int __must_check PTR_RET(__force const void *ptr) return 0; } +/* Deprecated */ +#define PTR_RET(p) PTR_ERR_OR_ZERO(p) + #endif #endif /* _LINUX_ERR_H */ |