Re: [PATCH] kfifo: fix warn_unused_result

[Alan Cox]

> The rest of the patch seems to be adding BUG()s if kfifo_in() fails. 
> All over the place.
> 
> If that's the appropriate way to handle failure for these callsites
> then it would be neater to do this in the callee.  ie, add a new

BUG_ON is a bit extreme for most of those if they fail. WARN_ONCE perhaps
given the usual consequences are minor (eg pointer jumping)

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