linux-kernel - Must check what?

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Date:	Wed, 4 Oct 2006 12:37:53 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Andrew Morton <akpm@...l.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Must check what?

I'd like to propose that anyone adding __must_check markers in the
future be forced to *WRITE SOME FUCKING DOCUMENTATION* about exactly
what it is the caller is supposed to be checking.

extern int __must_check bus_register(struct bus_type * bus);

Why, thank you.  Does it return 0 for success, or 1 on success?  Does it
return an errno?

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