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| author |   Levin, Alexander (Sasha Levin) <alexander.levin@verizon.com> | 2017-05-25 12:58:56 +0000 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-06-05 09:28:12 +0200 |
| commit | 61d4595eed163ea416c13c4b994f22190711151b (patch) | |
| tree | e6ee7a75ee1e844a99e20aa58793dd542cdf6619 /tools/include/linux | |
| parent | tools/lib/lockdep: Add empty __is_[module,kernel]_percpu_address (diff) | |
| download | linux-dev-61d4595eed163ea416c13c4b994f22190711151b.tar.xz linux-dev-61d4595eed163ea416c13c4b994f22190711151b.zip | |
tools/include: Add IS_ERR_OR_NULL to err.h
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: a.p.zijlstra@chello.nl
Cc: ben@decadent.org.uk
Link: http://lkml.kernel.org/r/20170525130005.5947-20-alexander.levin@verizon.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/include/linux')
| -rw-r--r-- | tools/include/linux/err.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h index bdc3dd8131d4..abf0478a8fb2 100644 --- a/tools/include/linux/err.h +++ b/tools/include/linux/err.h @@ -46,4 +46,9 @@ static inline bool __must_check IS_ERR(__force const void *ptr) return IS_ERR_VALUE((unsigned long)ptr); } +static inline bool __must_check IS_ERR_OR_NULL(__force const void *ptr) +{ + return unlikely(!ptr) || IS_ERR_VALUE((unsigned long)ptr); +} + #endif /* _LINUX_ERR_H */ |