On Thu, 04 Oct 2007 16:56:07 +0100 David Howells wrote: > Add an ERR_CAST() macro to complement ERR_PTR and co. for the purposes of > casting an error entyped as one pointer type to an error of another pointer > type whilst making it explicit as to what is going on. > > This provides a replacement for the ERR_PTR(PTR_ERR(p)) construct. > > Signed-off-by: David Howells <[EMAIL PROTECTED]> > --- > > include/linux/err.h | 12 ++++++++++++ > 1 files changed, 12 insertions(+), 0 deletions(-) > > diff --git a/include/linux/err.h b/include/linux/err.h > index 1ab1d44..e810ca4 100644 > --- a/include/linux/err.h > +++ b/include/linux/err.h > @@ -34,6 +34,18 @@ static inline long IS_ERR(const void *ptr) > return IS_ERR_VALUE((unsigned long)ptr); > } > > +/** > + * ERR_CAST - Explicitly cast an error-valued pointer to another pointer type > + * ptr: The pointer to cast.
@ptr: > + * > + * Explicitly cast an error-valued pointer to another pointer type in such a > + * way as to make it clear that's what's going on. > + */ > +static inline void *ERR_CAST(const void *ptr) > +{ > + return (void *) ptr; > +} > + > #endif > > #endif /* _LINUX_ERR_H */ --- ~Randy - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html