netdev - Re: [PATCH] rtnetlink: rtnl_link_register always returns zero

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Date:	Tue, 13 Dec 2011 16:08:10 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	alex.bluesman.smirnov@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] rtnetlink: rtnl_link_register always returns zero

From: alex.bluesman.smirnov@...il.com
Date: Wed, 14 Dec 2011 00:31:21 +0400

> From: Alexander Smirnov <alexander@...ovo.(none)>
> 
> Both functions 'rtnl_link_register' and '__rtnl_link_register' always
> return zero. So handling return status has no sense in several drivers.
> 
> Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@...il.com>

This is never acceptable.

As long as those routines do return a value we SHOULD NOT ignore
it.

If you ignore it, then if we do have to start returning an error
then all of these call sites have to be reverted back, which is
a waste of time.
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