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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2012-09-21 11:55:50 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-10-04 15:19:54 +0200 |
| commit | 6f4dd1b20438d2e313c0baab2df49e5d243483c2 (patch) | |
| tree | 6a95aff38b478be7d75b058dcc991194c474da30 /include/linux/err.h | |
| parent | 83b0ed7fbfd2baf0b3ec0d66c201fced57af2d1d (diff) | |
| download | barebox-6f4dd1b20438d2e313c0baab2df49e5d243483c2.tar.gz barebox-6f4dd1b20438d2e313c0baab2df49e5d243483c2.tar.xz | |
err.h: introduce IS_ERR_OR_NULL
Copied from Linux.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/linux/err.h')
| -rw-r--r-- | include/linux/err.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/err.h b/include/linux/err.h index e0d8d2d33a..19fb70dc08 100644 --- a/include/linux/err.h +++ b/include/linux/err.h @@ -34,6 +34,11 @@ static inline long IS_ERR(const void *ptr) return IS_ERR_VALUE((unsigned long)ptr); } +static inline long __must_check IS_ERR_OR_NULL(const void *ptr) +{ + return !ptr || IS_ERR_VALUE((unsigned long)ptr); +} + /** * ERR_CAST - Explicitly cast an error-valued pointer to another pointer type * @ptr: The pointer to cast. |