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Subject[PATCH] Add a function to cast error-pointers to a return value
Date
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
include/linux/err.h | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/include/linux/err.h b/include/linux/err.h
index 448afc1..f2edce2 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -52,6 +52,14 @@ static inline void * __must_check ERR_CAST(const void *ptr)
return (void *) ptr;
}

+static inline int __must_check PTR_RET(const void *ptr)
+{
+ if (IS_ERR(ptr))
+ return PTR_ERR(ptr);
+ else
+ return 0;
+}
+
#endif

#endif /* _LINUX_ERR_H */
--
1.7.2.3
--
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