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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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