Linus Torvalds wrote:

I think "must_check" is an abomination. It makes the callee dictate what 
the caller has to do, but dammit, if the callee really "knows" its errors 
are that serious, it should damn well handle them itself.

The whole "sysfs_create_file()" thing is an example of that. If it fails, 
it fails. The caller can't do anythign about it anyway, except perhaps 
print a message.  Why the hell does such a function have the "right" to 
dictate what the user should do?

Well, that's just how OO fascists think. An object dictates to the user 
what he/she can do with it, as opposed to the user can do what he 
wants/needs.


Tim