On Tue, 2014-06-17 at 11:00 -0500, Christoph Lameter wrote: > On Tue, 17 Jun 2014, Greg KH wrote: > > > Who really cares about that? What can do you do with that additional > > information that will help anything out? > > The obvious reason for doing so is so that one can put the error code into > a log message to get more detailed information on why the call failed. > > In this particular case the slab allocator can give an error message that > gives a hint why the sysfs support could not be enabled.
What useful information does this supply? The current assumption on NULL return is -ENOMEM ... what's the interesting case where this assumption is wrong? James -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
